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CHAPTER 62-550 

DRINKING WATER STANDARDS, MONITORING, 

AND REPORTING 

PART I 

PURPOSE AND INTENT 

 62-550.101 Authority, Intent, and Policy. (Repealed) 

Specific Authority 403.861(1), FS. Law Implemented 403.851, FS. History -- New 11-

9-77; Formerly 17-22.101; Amended 1-18-89, Formerly 17-550.101, Repealed 12-9-96. 

 62-550.102 Intent and Scope. 

 (1) To assure that public water systems supply drinking water which meets 

minimum requirements, the Federal Government enacted PL 93-523, the "Safe Drinking 

Water Act." The scheme of that law was to give primary responsibility for public water 

systems programs to states to implement a public water system program. Also, the 

legislature of Florida has enacted the "Florida Safe Drinking Water Act," sections 

403.850-403.864, F.S. This chapter and chapters 62-555 and 62-560, F.A.C., are 

promulgated to implement the requirements of the Florida Safe Drinking Water Act and 

to acquire and maintain primacy for Florida under the Federal Act. This chapter and 

chapter 62-555 and 62-560, F.A.C., adopt national primary and secondary drinking 

water standards of the Federal Government where possible, and otherwise create 

additional rules to fulfill state and Federal requirements. 

 (2) The Safe Drinking Water Act and the Florida Safe Drinking Water Act 

exclude certain public water systems from coverage. The drinking water rules in 

chapters 62-550, 62-555, and 62-560, F.A.C., apply to all public water systems except 

those which meet all of the following criteria: 

 (a) Consist of distribution and storage facilities only and do not have any 

collection or treatment facilities; 

 (b) Obtain all water from, but are not owned or operated by, a public water 

system to which such rules apply; 

 (c) Do not sell water to any person; and 

 (d) Are not carriers which convey passengers in interstate commerce. 

 (3) For the purpose of subsection (2) above, the phrase “sell water to any 

person” shall mean distribute water to land owned by another person as well as bill 

separately or specifically for the water. Also, for the purpose of subsection (2) above, 

the phrase “treatment facilities” shall exclude treatment facilities that are not necessary 

to achieve, and will not adversely affect, compliance with applicable drinking water 

standards and requirements. 

 (4) This chapter sets the drinking water standards, monitoring requirements, 

and treatment techniques to be met by public water systems and the testing protocol 

required for certified laboratories. 

 (5) Chapter 62-555, F.A.C., sets the permitting requirements for public water 

systems including the location and construction of wells serving the system and the 

treatment plant. Construction of public water systems require permits and the use of 

lead free pipes, plumbing fixtures, solder and flux. General permits for public water 

systems are included. Engineering references are listed. 

 (6) Chapter 62-560, F.A.C., gives the description of the violations of Chapters 

62-550, 62-555, and 62-560, F.A.C., and the resulting penalties. In addition, this chapter 

describes public notification requirements for public water systems that do not meet 
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applicable maximum contaminant levels, maximum residual disinfectant levels, and treat 

technique requirements; do not meet applicable monitoring requirements; or have a 

variance or exemption. This chapter also describes the availability and processes for 

receiving variances, exemptions, and waivers. Additionally, Best Available Technology 

is listed for various contaminants and disinfectant residuals. 

Specific Authority 403.861(9), FS. Law Implemented 403.851, 403.853, FS. History -- 

New 11-9-77, Amended 1-13-81, Formerly 17-22.102, Amended 1-18-89, Formerly 17-

550.102, Amended 12-9-96, 11-27-01, 4-3-03, 11-28-04. 

NOTE: Section 381.261, F.S., gives general supervision and control over all private 

water systems and public water systems not covered or included in the Florida Safe 

Drinking Water Act to the Department of Health (DOH). The Department interprets this 

as meaning that DOH has supervision and control of all water systems which meet all of 

the four exception criteria and which also have at least 15 service connections or which 

regularly serve at least 25 individuals daily at least 60 days out of the year. The 

Department also interprets Section 381.261, F.S., as meaning that DOH has 

supervision and control of all water systems that have less than 15 service connections 

or which regularly serve less than 25 individuals daily at least 60 days out of the year, or 

at least 25 individuals daily less than 60 days out of the year. 

 62-550.103 Effective Date. (Repealed) 

Specific Authority: 403.861(9), FS. Law Implemented 120.54(13)(a), 403.861(9), FS. 

History -- New 1-1-93, Formerly 17-550.103, Repealed 12-9-96. 

PART II 

DEFINITIONS 

 62-550.200 Definitions for Public Water Systems. 

For the purpose of this chapter and Chapters 62-555 and 62-560, F.A.C., the following 

words, phrases, or terms shall have the following meaning: 

 (1) "ACTION LEVEL" is the concentration of lead or copper in water specified 

in the Code of Federal Regulations, title 40, part 141, section 80(c) (1995) (abbreviated 

as 40 C.F.R. part 141.80(c)) which determines, in some cases, the treatment 

requirements contained in 40 C.F.R. subpart I (1995), that a system is required to 

complete. 

 (2) "ADEQUATE PROTECTION BY TREATMENT" means any one or any 

combination of the controlled processes of coagulation, sedimentation, absorption, 

adsorption, filtration, or other processes in addition to disinfection which produce a 

water that consistently meets the requirements of the standards in Rules 62-550.310 

through 62-550.410, F.A.C., including processes which are appropriate to the source of 

supply; systems which are of adequate capacity to meet maximum demands without 

creating health hazards and which are located, designed, and constructed to eliminate 

or prevent violations of these rules; and conscientious operation by well-trained and 

competent personnel who meet the requirements of Chapters 62-699 and 62-602, 

F.A.C. 

 (3) "ANNULAR SPACE" means the space between two casings or the space 

between the outer casing and the wall of the bore hole. 

 (4) "APPROVED COUNTY PUBLIC HEALTH DEPARTMENT" means county 

public health departments designated by the Department of Health and approved by the 
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Department as having qualified sanitary engineering staffs to perform the duties 

described in Section 403.862(1)(c), F.S. 

 (5) "BEST AVAILABLE TECHNOLOGY" or "BAT" means the best technology, 

treatment techniques, or other means promulgated by EPA and adopted by the 

Department. In promulgating BAT the EPA examines the efficacy under field conditions 

and not solely under laboratory conditions, and takes costs into consideration when 

determining what technology or treatment is available. 

 (6) "BOTTLED WATER" means water that is containerized or packaged and 

offered for human consumption or other consumer usage. 

 (7) "CAPACITY DEVELOPMENT" means the process of water systems 

acquiring and maintaining adequate technical, managerial, and financial capabilities to 

enable them to consistently provide safe drinking water. 

 (8) "CASING" means the tubular material used to shut off or exclude a 

stratum or strata other than the source bed and conduct water from only the source bed 

to the surface. 

 (9) "CHECK SAMPLE" means a sample analysis or analyses used to confirm 

the results of another sample. Each sample for the analysis shall be taken or measured 

at the same location in the water system as the original sample. 

 (10) "COAGULATION" means a process using coagulant chemicals and mixing 

by which colloidal and suspended materials are destabilized and agglomerated into 

flocs. 

 (11) "COMMENCEMENT OF OPERATIONS" means the beginning of the 

service of furnishing water treated by the water system to the consumers. 

 (12) "COMMUNITY WATER SYSTEM" (CWS) means a public water system 

that serves at least 15 service connections used by year-round residents or regularly 

serves at least 25 year-round residents. 

 (13) "COMPLIANCE CYCLE" means the nine-year cycle during which public 

water systems must monitor. Each compliance cycle consists of three three-year 

compliance periods. The first compliance cycle begins January 1, 1993 and ends 

December 31, 2001; the second begins January 1, 2002 and ends December 31, 2010; 

the third begins January 1, 2011 and ends December 31, 2019. 

 (14) "COMPLIANCE PERIOD" means a three-year period within a compliance 

cycle. Each compliance cycle has three three-year compliance periods. Within the first 

compliance cycle, the first compliance period runs from January 1, 1993 to December 

31, 1995; the second from January 1, 1996 to December 31, 1998; the third from 

January 1, 1999 to December 31, 2001. 

 (15) “COMPREHENSIVE PERFORMANCE EVALUATION (CPE)” means as 

defined in 40 CFR 141.2 (revised as of July 1, 2004). 

 (16) "CONFIRMATION SAMPLE" means a sample analysis or analyses taken 

to verify the results of an original analysis. Each sample for the analysis shall be taken 

or measured at the same location in the water system as the original sample. The 

results of the confirmation samples shall be averaged with the original sample to 

determine compliance. 

 (17) "CONFLUENT GROWTH" means a continuous bacterial growth covering 

the entire filtration area of a membrane filter used for coliform detection, or a portion 

thereof, in which bacterial colonies are not discrete. 

 (18) “CONSECUTIVE SYSTEM” means a public water system that buys or 

otherwise receives some or all of its finished water from one or more other public water 

systems at least 60 days per year. A consecutive system is either a “community water 

system” or a “non-community water system.” 
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 (19) "CONTAMINANT" means any physical, chemical, biological, or 

radiological substance or matter in water. 

 (20) "CONVENTIONAL FILTRATION TREATMENT" means a series of 

processes including coagulation, flocculation, sedimentation, and filtration resulting in 

substantial particulate removal. 

 (21) "CORROSION INHIBITOR" means a substance capable of reducing the 

corrosivity of water toward metal plumbing materials, especially lead and copper, by 

forming a protective film on the interior surface of those materials. 

 (22) "CROSS-CONNECTION" means any physical arrangement whereby a 

public water supply is connected, directly or indirectly, with any other water supply 

system, sewer, drain, conduit, pool, storage reservoir, plumbing fixture, or other device 

which contains or may contain contaminated water, sewage or other waste, or liquid of 

unknown or unsafe quality which may be capable of imparting contamination to the 

public water supply as the result of backflow. By-pass arrangements, jumper 

connections, removable sections, swivel or changeable devices, and other temporary or 

permanent devices through which or because of which backflow could occur are 

considered to be cross-connections. 

 (23) "CT" or “CTcalc” means as defined in 40 CFR 141.2 (revised as of July 1, 

2004). 

 (24) "DEPARTMENT" means the Department of Environmental Protection 

(DEP) and the Approved County Public Health Departments, and, where the context is 

appropriate, their employees. 

 (25) "DIATOMACEOUS EARTH FILTRATION" means a process resulting in 

substantial particulate removal in which a precoat cake of diatomaceous earth filter 

media is deposited on a support membrane (septum); and, while the water is filtered by 

passing through the cake on the septum, additional filter media known as body feed is 

continuously added to the feed water to maintain the permeability of the filter cake. 

 (26) "DIRECT FILTRATION" means a series of processes including 

coagulation and filtration but excluding sedimentation resulting in substantial particulate 

removal. 

 (27) "DISINFECTANT" means any oxidant, including but not limited to chlorine, 

chlorine dioxide, chloramines, and ozone added to water in any part of the treatment or 

distribution process, that is intended to kill or inactivate pathogenic microorganisms. 

 (28) "DISINFECTANT CONTACT TIME" ("T" in CT calculations) means the 

time in minutes that it takes for water to move from the point of disinfectant application 

or the previous point of disinfectant residual measurement to a point before or at the 

point where residual disinfectant concentration ("C") is measured. Disinfectant contact 

time in pipelines shall be calculated based on “plug flow” by dividing the internal volume 

of the pipe by the maximum hourly flow rate through that pipe. Disinfectant contact time 

within mixing basins and storage reservoirs shall be determined by tracer studies or in 

accordance with Appendix C or O of the guidance manual adopted in subsection 62-

555.335(1), F.A.C. 

 (29) "DISINFECTION" means a process which inactivates pathogenic 

organisms in water by chemical oxidants or equivalent agents. 

 (30) “DISINFECTION PROFILE” is a summary of daily Giardia Lamblia

inactivation through the treatment plant. The procedure for developing a disinfection 

profile is contained in Rule 62-550.817, F.A.C. 

 (31) "DOMESTIC OR OTHER NON-DISTRIBUTION SYSTEM PLUMBING 

PROBLEM" means a coliform contamination problem in a public water system with 
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more than one service connection that is limited to the specific service connection from 

which the coliform-positive sample was taken. 

 (32) "DOSE EQUIVALENT" means the product of the absorbed dose from 

ionizing radiation and such factors as account for differences in biological effectiveness 

due to the type of radiation and its distribution in the body, specified by the International 

Commission on Radiological Units and Measurements (ICRU). 

 (33) "EFFECTIVE CORROSION INHIBITOR RESIDUAL," for the purpose of 

40 C.F.R. subpart I (1995) only, means a concentration sufficient to form a passivating 

film on the interior walls of a pipe. 

 (34) “ENHANCED COAGULATION” means the addition of sufficient coagulant 

for improved removal of disinfection byproduct precursors by conventional filtration 

treatment. 

 (35) “ENHANCED SOFTENING” means the improved removal of disinfection 

byproduct precursors by precipitative softening. 

 (36) "EXEMPTION" means approval from the Department affording a public 

water system an extended time for compliance with an applicable maximum 

contaminant level, maximum residual disinfectant level, or treatment technique 

requirement due to compelling factors (which may include time, legal, or economic 

factors). 

 (37) “FILTER PROFILE” means a graphical representation of individual filter 

performance, based on continuous turbidity measurements or total particle counts 

versus time for an entire filter run, from startup to backwash inclusively, and includes an 

assessment of filter performance while another filter is being backwashed. 

 (38) "FILTRATION" means a process for removing particulate matter from 

water by passage through porous media. 

 (39) "FIRST DRAW SAMPLE" means a one-liter sample of tap water, collected 

in accordance with 40 C.F.R. part 141.86(b)(2) (1995), that has been standing in 

plumbing pipes at least 6 hours and is collected without flushing the tap. 

 (40) "FLOCCULATION" means a process to enhance agglomeration or 

collection of smaller floc particles into larger, more easily settleable particles through 

gentle stirring by hydraulic or mechanical means. 

 (41) “GAC10” means granular activated carbon filter beds with an empty-bed 

contact time of 10 minutes based on average daily flow and a carbon reactivation 

frequency of every 180 days. 

 (42) "GROSS ALPHA PARTICLE ACTIVITY" means the total radioactivity due 

to alpha particle emission as inferred from measurements on a dry sample. 

 (43) "GROSS BETA PARTICLE ACTIVITY" means the total radioactivity due to 

beta particle emission as inferred from measurements on a dry sample. 

 (44) "GROUND WATER UNDER THE DIRECT INFLUENCE OF SURFACE 

WATER" means any water beneath the surface of the ground with: 

 (a) Significant occurrence of insects or other macroorganisms, algae, or 

large-diameter pathogens such as Giardia lamblia or Cryptosporidium, or 

 (b) Significant and relatively rapid shifts in water characteristics such as 

turbidity, temperature, conductivity, or pH which closely correlate to climatological or 

surface water conditions. Direct influence shall be determined for individual sources in 

accordance with criteria established by the Department in subparagraph 62-

550.817(2)(a)1., F.A.C. 

 (45) “HALOACETIC ACIDS (FIVE)” (HAA5) means the sum of the 

concentrations in milligrams per liter of the haloacetic acid compounds 
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(monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid, 

and dibromoacetic acid) rounded to two significant figures after addition. 

 (46) "HALOGEN" as used in the present context of this rule means one of the 

chemical elements chlorine or bromine. 

 (47) "HEALTH HAZARDS" means any conditions, devices, or practices in a 

water supply system or its operation which create or may create an imminent and 

substantial danger to the health and well-being of the water consumer. 

 (48) "HETEROTROPHIC PLATE COUNT," formerly known as the standard 

plate count, is a procedure for estimating the number of live heterotrophic bacteria in 

water. Unless stated otherwise, heterotrophic plate count refers to Method (9215A), the 

pour plate method, as set forth in Standard Methods for Examination of Water and 

Wastewater, American Public Health Association, 17th Edition, 1989, pp. 9-58 to 9-60. 

 (49) "HUMAN CONSUMPTION" means water which is ingested, or absorbed 

into the body by dermal contact or through inhalation, except water which is used solely 

for fire or chemical emergencies. 

 (50) "INITIAL COMPLIANCE PERIOD" means the first full three-year 

compliance period that begins January 1, 1993. 

 (51) "LARGE SYSTEM," for the purpose of 40 C.F.R. subpart I (1995) only, 

means a water system that serves more than 50,000 people. 

 (52) "LEAD SERVICE LINE" means a service line made of lead which 

connects the water main to the building inlet and any lead pigtail, gooseneck or other 

fitting which is connected to such a lead line. 

 (53) LEGIONELLA means a genus of bacteria some species of which have 

caused a type of pneumonia called Legionnaires Disease. 

 (54) "LINER" means the tubular material used to seal off caving materials 

which may be encountered below the bottom end of the well casing. A liner shall not be 

allowed to overlap or telescope into any portion of the well casing. 

 (55) "MAN-MADE BETA PARTICLE AND PHOTON EMITTERS" means all 

radionuclides emitting beta particles or photons listed in "Maximum Permissible Body 

Burdens and Maximum Permissible Concentration of Radionuclides in Air or Water for 

Occupational Exposure," NBS Handbook 69, except the daughter products of thorium232, uranium-235, and uranium-238. 

 (56) "MAXIMUM CONTAMINANT LEVEL" (MCL) means the maximum 

permissible level of a contaminant in water which is delivered to any user of a public 

water system. 

 (57) “MAXIMUM RESIDUAL DISINFECTANT LEVEL” (MRDL) means a level 

of a disinfectant added for water treatment that may not be exceeded at the consumer’s 

tap without an unacceptable possibility of adverse health effects. For chlorine and 

chloramines, a public water system (PWS) is in compliance with the MRDL when the 

running annual average of monthly averages of samples taken in the distribution 

system, computed quarterly, is less than or equal to the MRDL. For chlorine dioxide, a 

PWS is in compliance with the MRDL when daily samples are taken at the entrance to 

the distribution system and no two consecutive daily samples exceed the MRDL. 

MRDLs are enforceable in the same manner as maximum contaminant levels under the 

Florida Safe Drinking Water Act. However, there is convincing evidence that addition of 

a disinfectant is necessary for control of waterborne microbial contaminants. Therefore, 

notwithstanding the MRDLs listed in subsection 62-550.310(2), F.A.C., operators may 

increase residual disinfectant levels of chlorine or chloramines (but not chlorine dioxide) 

in the distribution system to a level, and for a time, necessary to protect public health to 

address specific microbiological contamination problems caused by circumstances such 
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as distribution line breaks, storm runoff events, source water contamination, or cross 

connections. 

 (58) "MAXIMUM TOTAL TRIHALOMETHANE POTENTIAL" (MTP) means the 

maximum concentration of total trihalomethanes produced in a given water containing a 

disinfectant residual after 7 days at a temperature of 25°C or above. 

 (59) "MEDIUM SYSTEM," for the purpose of 40 C.F.R. subpart I (1995) only, 

means a water system that serves greater than 3,300 and less than or equal to 50,000 

people. 

 (60) "NEAR THE FIRST SERVICE CONNECTION" means at one of the 20 

percent of all service connections in the entire system that are nearest the water supply 

treatment facility, as measured by water transport time within the distribution system. 

 (61) "NEW SYSTEM" means, for the purposes of capacity development, 

community water systems or non-transient non-community water systems being newly 

constructed; systems which do not currently meet the definition of a public water system 

under Rule 62-550.200(70), but which expand their infrastructure and thereby grow to 

become community water systems or non-transient non-community water systems; and 

transient non-community systems that expand their infrastructure and thereby grow to 

become community water systems or non-transient non-community water systems. 

Systems not currently public water systems under subsection 62-550.200(70), F.A.C., 

or systems that are transient non-community systems, and that add additional users 

and thereby become community water systems or non-transient non-community water 

systems without constructing any additional infrastructure are not "new systems" for 

purposes of capacity development. 

 (62) "NON-COMMUNITY WATER SYSTEM" means a public water system that 

is not a community water system. A non-community water system is either a “transient 

non-community water system” (TWS) or a “non-transient non-community water system” 

(NTNCWS). See Code of Federal Regulations (C.F.R.), title 40, part 141, section 2. 

Other public water systems are addressed in Chapter 64E-8, F.A.C. 

 (63) "NON-TRANSIENT NON-COMMUNITY WATER SYSTEM" means a 

public water system that is not a community water system and that regularly serves at 

least 25 of the same persons over 6 months per year. 

 (64) "OPTIMAL CORROSION CONTROL TREATMENT," for the purpose of 40 

C.F.R. subpart I (1995) only, means the corrosion control treatment that minimizes the 

lead and copper concentrations at users' taps while ensuring that the treatment does 

not cause the system to violate any national primary drinking water regulations. 

 (65) "PERSON" means an individual, public or private corporation, company, 

association, partnership, municipality, agency of the state, district, Federal agency, or 

any other legal entity, or its legal representative, agent, or assigns. 

 (66) "PICOCURIE (pCi)" means that quantity of radioactive material producing 

2.22 nuclear transformations per minute. 

 (67) "POINT OF DISINFECTANT APPLICATION" is the point where the 

disinfectant is applied and water downstream of the point is not subject to 

recontamination by surface water runoff. 

 (68) "POINT-OF-ENTRY TREATMENT DEVICE (POE)" is a treatment device 

applied to the drinking water entering a house or building in order to reduce 

contaminants in the drinking water distributed throughout the house or building. 

 (69) "POINT-OF-USE TREATMENT DEVICE (POU)" is a treatment device 

applied to a single tap used in order to reduce contaminants in drinking water at that 

location. 
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 (70) "PUBLIC WATER SYSTEM" or “PWS” means a system for the provision 

to the public of water for human consumption through pipes or other constructed 

conveyances, if such system has at least fifteen service connections or regularly serves 

an average of at least twenty-five individuals daily at least 60 day out of the year. Such 

term includes: any collection, treatment, storage, and distribution facilities under control 

of the operator of such system and used primarily in connection with such system; and 

any collection or pretreatment storage facilities not under such control which are used 

primarily in connection with such system. Such term does not include any “special 

irrigation district.” A public water system is either a “community water system” or a 

“non-community water system.” See the Code of Federal Regulations (C.F.R.), title 40, 

part 141, section 2. 

 (71) "RECLAIMED WATER" means water that has received at least secondary 

treatment and is reused after flowing out of a wastewater treatment facility. 

 (72) "REM" means the unit of dose equivalent from ionizing radiation to the 

total body or any internal organ or organ system. A "millirem" (mrem) is 1/1000 of a 

rem. 

 (73) "REPEAT COMPLIANCE PERIOD" means any subsequent compliance 

period after the initial compliance period. 

 (74) "RESIDUAL DISINFECTANT CONCENTRATION" ("C" in CT calculations) 

means the concentration of disinfectant measured in milligrams per liter in a 

representative sample of water. 

 (75) "SANITARY HAZARD" means a physical condition which involves or 

affects any part of a drinking water system or the raw water source, and that creates an 

imminent or potentially serious risk to the health of any person who consumes water 

from that system. 

 (76) "SANITARY SURVEY" means an on-site review of the water source 

(identifying sources of contamination using results of source water assessments where 

available), facilities, equipment, operation, maintenance, and monitoring compliance of 

a public water system to evaluate the adequacy of the system to produce and distribute 

safe drinking water and remain in compliance with the Federal and State Safe Drinking 

Water Acts and Department rule chapters 62-550, 62-555, 62-560, and 62-699, F.A.C. 

 (77) "SEDIMENTATION" means a process for removal of solids before 

filtration by gravity or separation. 

 (78) “SERVICE CONNECTION” means as defined in 40 CFR 141.2 (revised as 

of July 1, 2002). 

 (79) "SERVICE LINE SAMPLE" means a one-liter sample of water collected in 

accordance with 40 C.F.R. part 141.86(b)(3), (1995), that has been standing for at least 

6 hours in a service line. 

 (80) "SINGLE FAMILY STRUCTURE," for the purpose of 40 C.F.R. subpart I 

only, means a building constructed as a single-family residence that is currently used as 

either a residence or a place of business. 

 (81) "SLOW SAND FILTRATION" means a process involving passage of raw 

water through a bed of sand at low velocity (generally less than 0.4 meters per hour) 

resulting in substantial particulate removal by physical and biological mechanisms. 

 (82) "SMALL SYSTEM," for the purpose of 40 C.F.R. subpart I (1995) only, 

means a water system that serves 3,300 people or less. 

 (83) "SOURCE WATER SAMPLE" for the purpose of 40 C.F.R. subpart I 

(1995) only, means a sample that is collected at an entry point to the distribution system 

and is representative of a source of supply after treatment. 
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 (84) “SPECIFIC ULTRAVIOLET ABSORPTION” (SUVA) means specific 

ultraviolet absorption at 254 nanometers (nm), which is an indicator of the humic 

content of water. It is a calculated parameter obtained by dividing a sample’s ultraviolet 

absorption at a wavelength of 254 nm (in m-1) by its concentration of dissolved organic 

carbon (in mg/L). 

 (85) "STANDARD BACTERIA SAMPLE" means the aliquot of raw or finished 

drinking water that is examined for the presence of coliform bacteria, and shall consist 

of: a. For the bacteriological fermentation tube test, five (5) standard portions of either: 

1. Ten milliliters (10 ml); 2. or one hundred milliliters (100 ml); b. For the membrane filter 

technique, not less than one hundred milliliters (100 ml). 

 (86) “SUBPART H SYSTEM” means a public water system that is using 

surface water or ground water under the direct influence of surface water as a source 

and that is subject to the requirements of 40 CFR 141, subpart H, and Rule 62-550.817, 

F.A.C. 

 (87) "SUPPLIER OF WATER" means any person who owns or operates a 

public water system. 

 (88) "SURFACE WATER" means all water which is open to the atmosphere 

and subject to surface runoff. Water from natural springs shall be classified as surface 

water when it exits from the spring onto the earth's surface. 

 (89) "SYSTEM WITH A SINGLE SERVICE CONNECTION" means a system 

which supplies drinking water to consumers via a single service line. 

 (90) “TIER 1 PUBLIC NOTICE” means a public notice issued in response to 

the events described in subparagraph 62-560.410(1)(a)1, F.A.C. 

 (91) “TIER 2 PUBLIC NOTICE” means a public notice issued in response to 

the events described in subparagraph 62-560.410(1)(a)2, F.A.C. 

 (92) “TIER 3 PUBLIC NOTICE” means a public notice issued in response to 

the events described in subsection 62-560.410(3), F.A.C. 

 (93) "TOO NUMEROUS TO COUNT" means that the total number of bacterial 

colonies exceed 200 on a 47-millimeter diameter membrane filter used for coliform 

detection. 

 (94) “TOTAL ORGANIC CARBON” (TOC) means total organic carbon (in 

mg/L) measured using heat, oxygen, ultraviolet irradiation, chemical oxidants, or 

combinations of these oxidants that convert organic carbon to carbon dioxide, rounded 

to two significant figures. 

 (95) "TOTAL TRIHALOMETHANES" (TTHM) means the sum of the 

concentration in milligrams per liter of the trihalomethane compounds: trichloromethane 

(chloroform), dibromochloromethane, bromodichloromethane, tribromomethane 

(bromoform), rounded to two significant figures after addition. 

 (96) “TRANSIENT NON-COMMUNITY WATER SYSTEM” or “TWS” means a 

non-community water system that does not regularly serve at least 25 of the same 

persons over six months per year. See the Code of Federal Regulations (C.F.R.), title 

40, part 141, section 2. 

 (97) "TREATMENT TECHNIQUE" means the technology, when installed in a 

public water system, which leads to the reduction of contaminant levels. 

 (98) "TRIHALOMETHANE" (THM) means one of the family of organic 

compounds named as derivatives of methane, wherein three of the four hydrogen 

atoms in methane are each substituted by a halogen atom in the molecular structure. 

 (99) “UNCOVERED FINISHED WATER STORAGE FACILITY” means a tank, 

reservoir, or other facility used to store water that will undergo no further treatment 

except residual disinfection and is open to the atmosphere. 
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 (100) "VARIANCE" means approval from the Department affording a public 

water system an extended time for compliance with an applicable maximum 

contaminant level or maximum residual disinfectant level, or allowing a public water 

system to not comply with an applicable treatment technique requirement, due to the 

quality of the raw water. 

 (101) "VIRUS" means a virus of fecal origin which is infectious to humans by 

waterborne transmission. 

 (102) "WAIVER" means approval from the Department for elimination of 

enhanced coagulation requirements or enhanced softening requirements, elimination of 

disinfection requirements or certified operator requirements for transient non-community 

water systems using only ground water not under the direct influence of surface water, 

or reduction of the monitoring requirements for organic contaminants listed in 

paragraphs 62-550.310(4)(a) and (b), F.A.C. 

 (103) "WATERBORNE DISEASE OUTBREAK" means the occurrence of acute 

infectious illness, epidemiologically associated with the ingestion of water from a public 

water system which is deficient in treatment, as determined by the Department. 

 (104) "WELL" means any excavation that is drilled, cored, bored, washed, 

driven, dug, jetted, or otherwise constructed when the intended use of such excavation 

is to conduct ground water from a source bed to the surface, by pumping or natural flow, 

when ground water from such excavation is used or is to be used for a public water 

supply system. 

 (105) “WHOLESALE SYSTEM” means a public water system that sells or 

otherwise delivers finished water to another public water system at least 60 days per 

year. A wholesale system that delivers water to a community water system is 

considered a community water system. 

Specific Authority 403.861(9), FS. Law Implemented 403.853, 403.854, 403.8615, 

403.862, FS. History - New 11-9-77, Amended 1-13-81, 11-19-87, Formerly 17-22.103, 

Amended 1-18-89, 5-7-90, 1-3-91, 1-1-93, Formerly 17-550.200, Amended 9-7-94, 12-

9-96, 9-22-99, 8-1-00, 11-27-01, 4-3-03, 11-25-03, 10-14-04, 11-28-04, 1-17-05. 

PART III 

QUALITY STANDARDS 

 62-550.300 Application of Quality Standards to Public Water Systems. 

The ultimate concern of the public water system supervision program is the quality of 

water for human consumption when the water reaches the consumers. The following 

rules establish maximum contaminant levels (MCLs) and maximum residual disinfectant 

levels (MRDLs) for water within public water systems. Additionally, these rules 

establish treatment technique requirements in lieu of, or in addition to, MCLs for certain 

contaminants. Public water systems shall comply with the MCLs, MRDLs, and 

treatment technique requirements established herein unless granted a variance or 

exemption pursuant to Rule 62-560.510 or 62-560.520, F.A.C., or unless identified as 

excluded from the MCLs, MRDLs, or treatment technique requirements by this chapter. 

Public water systems shall take necessary corrective action approved by the 

Department to meet all applicable MCLs, MRDLs, and treatment technique 

requirements. 

Specific Authority 403.861(9), FS. Law Implemented 403.852(12), (13), 403.853(1), 

FS. History -- New 11-9-77, Amended 3-30-82, 11-19-87, Formerly 17-22.200, 

Amended 1-18-89, 1-3-91, Formerly 17-550.300, Amended 11-27-01. 
11 

 62-550.310 Primary Drinking Water Standards: Maximum Contaminant 

Levels and Maximum Residual disinfectant Levels. 

(These standards may also apply as ground water quality standards as referenced in 

Chapter 62-520, F.A.C.) 

 (1) INORGANICS - Except for nitrate and nitrite, which apply to all public 

water systems, this subsection applies to community water systems and non-transient 

non-community water systems only. 

 (a) The maximum contaminant levels for the inorganic contaminants are listed 

in Table 1, which is incorporated herein and appears at the end of this Chapter. 

 (b) The maximum contaminant level for nitrate (as N) applicable to transient 

non-community water systems is 10 milligrams per liter. The Department or Approved 

County Public Health Department shall allow a contaminant level for nitrate (as N) of up 

to 20 milligrams per liter upon a showing by the supplier of water that the following 

conditions are met: 

 1. The water distributed by the water system is not available to children 

under 6 months of age or to lactating mothers, and 

 2. There is continuous public notification of what the nitrate level (as N) is 

and the potential health effects of such exposure are. 

 3. The Department shall require monitoring every 3 months as long as the 

maximum contaminant level is exceeded. Should adverse health effects occur, the 

Department shall require immediate compliance with the maximum contaminant level 

for nitrate (as N). 

 (c) The revised maximum contaminant level of 0.010 mg/L for arsenic 

becomes effective January 1, 2005. All community and non-transient non-community 

water systems shall demonstrate compliance with the revised maximum contaminant 

level by December 31, 2007. 

 (2) DISINFECTANT RESIDUALS – Except for the chlorine dioxide maximum 

residual disinfectant level, which applies to all public water systems using chlorine 

dioxide as a disinfectant or oxidant, this subsection applies only to community or nontransient non-community water systems adding a chemical disinfectant to the water in 

any part of the drinking water treatment process. Maximum residual disinfectant levels 

(MRDLs) are listed in Table 2, which is incorporated herein and appears a the end of 

this chapter. 

 (3) DISINFECTANT BYPRODUCTS – This subsection applies to all 

community or non-transient non-community water systems adding a chemical 

disinfectant to the water in any part of the drinking water treatment process. The Stage 

1 maximum contaminant levels (MCLs) for disinfection byproducts are listed in Table 3, 

which is incorporated herein and appears at the end of this chapter. 

 (4) ORGANICS – This subsection applies only to community water systems 

and non-transient non-community water systems. 

 (a) The maximum contaminant levels for the volatile organic contaminants 

(VOCs) are listed in Table 4, which is incorporated herein and appears at the end of this 

chapter. The regulatory detection limit (RDL) for all VOCs is 0.0005 mg/L. 

 (b) The maximum contaminant levels and the regulatory detection limits 

(RDLS) for the synthetic organic contaminants (SOCs) are listed in Table 5, which is 

incorporated herein and appears at the end of this chapter. 

 (5) MICROBIOLOGICAL - This subsection applies to all public water systems. 

Monitoring requirements to demonstrate compliance with this subsection are defined in 

Rule 62-550.518, F.A.C. 
12 

 (a) The maximum contaminant level is based on the presence or absence of 

total coliforms in a sample, rather than coliform density. For the purpose of the public 

notice requirements in Rule 62-560.410, F.A.C., a violation of the standards in this 

paragraph poses a non-acute risk to health. 

 1. For a system which collects at least 40 samples per month, if no more 

than 5.0 percent of the samples collected during a month are total coliform-positive, the 

system is in compliance with the maximum contaminant level for total coliforms. 

 2. For a system which collects fewer than 40 samples per month, if no more 

than one sample collected during a month is total coliform-positive, the system is in 

compliance with the maximum contaminant level for total coliforms. 

 (b) Any fecal coliform-positive repeat sample or E.coli-positive repeat sample, 

or any total coliform-positive repeat sample following a fecal coliform-positive or E.colipositive routine sample is a violation of the maximum contaminant level for total 

coliforms. For the purposes of the public notification requirements in Rule 62-560.410, 

F.A.C., this is a violation that poses an acute risk to health. 

 (c) A public water system shall determine compliance with the maximum 

contaminant level for total coliforms in paragraphs (a) and (b) or this subsection for each 

month (or quarter for transient non-community water systems that use only ground 

water not under the direct influence of surface water and that serve 1,000 or fewer 

persons) in which it is required to monitor for total coliforms. 

 (6) RADIONUCLIDES - This subsection applies only to community water 

systems. The following are the maximum contaminant levels (MCLs) and regulatory 

detection limits (RDLs) for radionuclides: 

 (a) Naturally occurring radionuclides: 

MAXIMUM CONTAMINANT LEVELS 

FOR RADIONUCLIDES 

CONTAMINANT MAXIMUM 

CONTAMINANT 

LEVEL 

Combined radium-226 and radium-228 5 pCi/L 

Gross alpha particle activity including 

radium-226 but excluding radon and 

uranium 

15 pCi/L 

Uranium 30 ug/L 

pCi/L = picocuries per liter 

ug/L = micrograms per liter 

 (b) Man-made radionuclides: 

 1. The average annual concentration of beta particle and photon radioactivity 

from man-made radionuclides in drinking water shall not produce an annual dose 

equivalent to the body or any internal organ greater than 4 millirem/year. 

 2. Except for those radionuclides listed below, the concentration of manmade radionuclides causing 4 mrem total body or organ dose equivalents shall be 

calculated on the basis of a 2 liter per day drinking water intake using the 168-hour data 

list in "Maximum Permissible Body Burdens and Maximum Permissible Concentration of 

Radionuclides in Air or Water for Occupational Exposure," NBS Handbook 69 as 

amended August 1963, U.S. Department of Commerce. 
13 

Average Annual Concentration Assumed to Produce 

an Exposure of 4 millirem/year: 

RADIONUCLIDE CRITICAL ORGAN pCi/L 

Tritium total body 20,000 

Strontium-90 bone marrow 8 

pCi/L = picocuries per liter 

 3. If two or more radionuclides are present, the sum of their annual dose 

equivalent to the total body or to any organ shall not exceed 4 millirem/year. 

 (c) For the purpose of monitoring for gross alpha particle activity, radium-226, 

radium-228, uranium, and beta particle and photon radioactivity in drinking water, the 

following regulatory detection limits shall be used: 

CONTAMINANT REGULATORY DETECTION LIMIT 

Gross alpha particle activity 3 pCi/L 

Radium-226 1 pCi/L 

Radium-228 1 pCi/L 

Uranium 1 ug/L 

Tritium 1,000 pCi/L 

Strontium-89 10 pCi/L 

Strontium-90 2 pCi/L 

Iodine-131 1 pCi/L 

Cesium-134 10 pCi/L 

Gross beta 4 pCi/L 

Other radionuclides 1/10 of the applicable limit 

pCi/L = picoCuries per liter 

ug/L = micrograms per liter 

Specific Authority 403.861(9), FS. Law Implemented 403.852(12), 403.853(1), FS. 

History -- New 11-19-87, Formerly 17-22.210, Amended 1-18-89, 5-7-90, 1-3-91, 

1-1-93, 1-26-93, 7-4-93, Formerly 17-550.310, Amended 9-7-94, 8-1-00, 11-27-01, 4-

14-03, 4-25-03, 11-28-04. 

 62-550.315 Primary Drinking Water Standards: Treatment Technique 

Requirements. 

 (1) CONTROL OF ACRYLAMIDE AND EPICHLOROHYDRIN – This 

subsection applies to all public water systems using acrylamide or epichlorohydrin. 

 (a) Each system using acrylamide or epichlorohydrin shall certify annually in 

writing to the Department that the combination of dose and monomer level does not 

exceed the following levels: 

 1. Acrylamide = 0.05 percent dosed at one part per million (or equivalent). 

 2. Epichlorohydrin = 0.01 percent dosed at 20 parts per million (or 

equivalent). 

 (b) Certifications required by paragraph (a) above may rely on appropriate 

manufacturer or third party certifications. 
14 

 (2) FILTRATION AND DISINFECTION (SURFACE WATER TREATMENT) – 

This subsection applies only to subpart H systems. Filtration and disinfection treatment 

technique requirements are specified in Rule 62-550.817, F.A.C. 

 (3) CONTROL OF LEAD AND COPPER – This subjection applies only to 

community water systems and non-transient non-community water systems. The 

treatment technique requirements for control of lead and copper are specified in 40 CFR 

141, subpart I, as adopted under Rule 62-550.800, F.A.C. 

 (4) CONTROL OF DISINFECTION BYPRODUCT PRECURSORS 

(ENHANCED COAGULATION OR ENHANCED SOFTENING) – This subsection 

applies only to community or non-transient non-community water systems that are 

subpart H systems using conventional filtration treatment. The treatment technique 

requirements for control of disinfection byproduct precursors are specified in 40 CFR 

141, subpart L, as adopted and modified under Rule 62-550.821, F.A.C. 

Specific Authority 403.861(9), FS. Law Implemented 403.852(12), 403.853(1), 

403.861(17), FS. History--New 11-27-01, Amended 4-3-03. 

 62-550.320 Secondary Drinking Water Standards: Maximum Contaminant 

Levels. 

This section applies only to community water systems. (These standards may also 

apply as ground water quality standards as referenced in Chapter 62-520, F.A.C.). 

 (1) The secondary maximum contaminant levels are listed in Table 6, which is 

incorporated herein and appears at the end of this chapter. 

 (2) Failure to meet the fluoride secondary standard requires public notification 

pursuant to Rule 62-560.430, F.A.C. 

Specific Authority 403.861(9), FS. Law Implemented 403.852(13), 403.853(1), FS. 

History -- New 11-19-87, Formerly 17-22.220, Amended 1-18-89, 1-1-93, 7-4-93, 

Formerly 17-550.320, Amended 9-7-94, 11-27-01. 

 62-550.325 Secondary Drinking Water Standards: Treatment Technique 

Requirements for Control of Iron and Manganese. 

This section applies only to community water systems (CWSs). 

 (1) CWSs may, in lieu of meeting the maximum contaminant level for iron or 

manganese, sequester iron or manganese using polyphosphates when the maximum 

concentration of iron plus manganese does not exceed 1.0 milligrams per liter. Each 

CWS using polyphosphate to sequester iron or manganese shall certify annually in 

writing to the Department that the amount of phosphate added does not exceed 10 

milligrams per liter as PO4. 

 (2) CWSs using ground water may, in lieu of meeting the maximum 

contaminant level for iron or manganese, sequester iron or manganese using sodium 

silicates when the maximum concentration of iron plus manganese does not exceed 2 

milligrams per liter. Each CWS using sodium silicate to sequester iron or manganese 

shall certify annually in writing to the Department that the amount of silicate added does 

not exceed 20 milligrams per liter as SiO2 and that the total amount added plus naturally 

occurring silicate does not exceed 60 milligrams per liter as SiO2. 

Specific Authority 403.861(6), (9), FS. Law Implemented 403.853(1), (3), 403.861(16), 

(17), FS. History -- New 1-1-93, Amended 7-4-93, Formerly 17-550.325, Amended 11-

27-01. 
15 

 62-550.330 Other Contaminants Without a Standard. 

No contaminant which creates or has the potential to create an imminent and 

substantial danger to the public shall be introduced into a public water system. 

Specific Authority 403.861(9), FS. Law Implemented 403.852(12), (13), 403.853(1), 

FS. History - New 11-19-87, Formerly 17-22.230, 17-550.330. 

 62-550.335 Relationship Among Rules 62-550.300-.690, F.A.C. (Repealed) 

Specific Authority 403.861(9), FS. Law Implemented 403.852(12), (13), 403.853(1), 

FS. History - New 11-19-87, Formerly 17-22.235, Amended 1-18-89, 1-3-91, Formerly 

17-550.335, Repealed 12-9-96. 

 62-550.340 Small System Compliance Technologies. 

 (1) The United States Environmental Protection Agency (US EPA) has 

published a list of “Small System Compliance Technologies.” These technologies are 

suggested by US EPA as being affordable methods that systems serving from 25 to 

10,000 persons should consider when searching for ways to deal with certain 

contaminants. 

 (a) A list of small systems compliance technologies for radionuclides and 

limitations on their use are contained in the July 1, 2003 edition of 40 CFR 141.66(h). 

 (b) A list of small system compliance technologies for arsenic and limitations 

on their use are contained in the July 1, 2003 edition of 40 CFR 141.62(d). 

 (2) Community, non-transient non-community and transient non-community 

water systems may use point-of-entry (POE) or point-of-use (POU) devices to comply 

with a maximum contaminant level (MCL). 

 (a) The use of POE and POU devices shall be limited to systems serving 

3,300 or fewer people. 

 (b) POE and POU units shall be owned, controlled, and maintained by the 

water system. A contractor may be hired by the water system to ensure proper 

operation and maintenance of the devices and compliance with maximum contaminant 

levels. The following are additional requirements: 

 1. POE and POU units shall conform to applicable NSF International (NSF) 

standards for drinking water treatment units i.e. NSF Standard 42-2002, 50-2002, 53-

2003, 55-2002, 58-2002, or 62-1999). 

 2. POE and POU units shall have warning devices attached to provide 

automatic notification of operational problems. 

 (c) A water system desiring to use POE or POU devices to comply with a 

maximum contaminant level must submit its request in writing to the Department. The 

Department shall approve or disapprove the request, or request additional information, 

within 30 days of receiving the complete submittal. The request for approval shall 

include, as a minimum, the following: 

 1. The results of pilot testing. The system shall conduct pilot testing of POE 

and POU devices in order to select the proper technology and sizes. 

 2. An ecomonic analysis. The analysis shall compare the costs of 

centralized treatment to that of the selected technology. The Department shall not 

approve the use of POE or POU devices in the event centralized treatment is more cost 

effective. 

 3. An installation plan. This plan shall detail what and where devices are to 

be installed. When POU devices are used, the system shall install one at each point 

where people normally would be expected to consume water (drinking fountains, ice 
16 

makers, wet bars, kitchen sinks, etc.). The plan shall also detail customer education 

and training. 

 4. A maintenance plan. This plan shall provide schedules for inspection, 

maintenance, and replacement of the devices. If a contactor is used to maintain the 

devices, the plan shall provide details of the contractural agreement. 

 5. A monitoring plan. This plan shall provide details for monitoring the 

effluent of the devices. Monitoring shall be frequent enough to ensure that no break 

through of the contaminant occurs. All monitoring results shall be reported to the 

Department as required by Rule 62-550.730, F.A.C. 

Specific Authority 403.861(9), FS. Law Implemented 403.852(12), 403.853(1), FS. 

History – New 4-14-03, Amended 11-28-04. 

PART IV 

UNREGULATED CONTAMINANTS 

 62-550.400 General Requirements for Unregulated Contaminants. 

All community and non-transient non-community water systems shall monitor for 

unregulated contaminants when and as directed by the U.S. Environmental Protection 

Agency. 

Specific Authority 403.861(9), (16), (17), FS. Law Implemented 403.853(1), (3), (7), 

FS. History - New 1-18-89, Amended 5-7-90, 1-1-93, Formerly 17-550.400, Amended 

8-1-00. 

 62-550.405 Group I Unregulated Organic Contaminants. (Repealed) 

Specific Authority 403.861(9), FS. Law Implemented 403.853(1), (3), 403.861(16), 

(17), FS. History -- New 1-1-93, Amended 1-26-93, Formerly 17-550.405, Amended 9-

7-94. Repealed 8-1-00. 

 62-550.410 Group II Unregulated Organic Contaminants. (Repealed) 

Specific Authority 403.861(9), FS. Law Implemented 403.853(1), (3), 403.861(16), 

(17), FS. History -- Formerly 17-550.310(8), Amended 1-1-93, 1-26-93, 7-4-93, 

Formerly 17-550.410, Amended 9-7-94, Repealed 8-1-00. 

 62-550.415 Group III Unregulated Organic Contaminants. (Repealed) 

Specific Authority 403.861(9), FS. Law Implemented 403.853(1), (3), 403.861(16), 

(17), FS. History -- New 9-7-94, Repealed 8-1-00. 

PART V 

MONITORING REQUIREMENTS 

 62-550.500 General Monitoring and Compliance Measurement 

Requirements for Contaminants and Disinfectant Residuals. 

These general requirements shall apply unless other monitoring or compliance 

measurement requirements are specified in Rules 62-550.511 through 62-550.540, 

F.A.C., or Rule 62-550.821, F.A.C. 

 (1) The Monitoring Framework. Monitoring by public water systems shall be 

accomplished within a standardized monitoring framework developed to address the 

issues of complexity, coordination between various rules, and coordination of monitoring 

schedules. A compliance cycle is a nine-year period during which all public water 

systems must monitor. Compliance cycles begin January 1, 2002, and January 1, 
17 

2011, and every nine years thereafter. Each compliance cycle is broken down into 

three three-year compliance periods. For example, the three compliance periods that 

make up the 2002 through 2010 compliance cycle begin January 1, 2002, January 1, 

2005, and January 1, 2008. 

 (2) Monitoring Frequencies. Monitoring frequencies for each group of 

contaminants or disinfectant residuals are specified in Rules 62-550.511 through 62-

550.520, F.A.C. plus Rule 62-550.821, F.A.C., and are summarized in Table 7. 

 (3) Monitoring Schedule. Each public water system shall monitor at the time 

designated by this subsection during each compliance cycle and compliance period. 

Table 8 summarizes when public water systems shall perform initial or routine 

monitoring. 

 (a) Systems that monitor for a contaminant quarterly may do so any time 

during the quarter, except that samples taken in consecutive quarters shall be taken at 

least 30 days apart. 

 (b) Systems that monitor for a contaminant annually may do so any time 

during the year, except that samples taken in consecutive years shall be taken at least 

90 days apart. 

 (c) Systems that monitor for a contaminant every three years shall adhere to 

the following schedule: 

 1. Community water systems which serve more than 3,300 persons shall 

monitor during the first year of each compliance period. 

 2. Community water systems which serve 3,300 or fewer persons shall 

monitor during the second year of each compliance period. 

 3. Non-transient non-community water systems shall monitor during the third 

year of each compliance period. 

 (d) Systems that monitor for a contaminant every six years shall monitor as 

directed by the Department. 

 (e) Systems that monitor for a contaminant every nine years shall monitor 

during the first three-year compliance period of each nine-year compliance cycle 

following the same schedule as in paragraph (c) above. 

 (f) In the event the population of a small community system increases to 

more than 3,300 persons, the system shall continue to monitor on the schedule 

originally prescribed in paragraphs (c) and (d) above for the remainder of the nine-year 

compliance cycle. At the beginning of the next nine-year compliance cycle, the system 

shall begin monitoring in the prescribed year according to its then current size or 

classification. 

 (g) Upon request, small community systems and non-transient noncommunity systems shall be approved to monitor earlier during compliance periods or 

cycles than required by paragraphs (c) through (e) above. 

 (4) Increased Monitoring. When specified by the State Health Officer, the 

Department shall require more frequent monitoring than specified in this section and 

shall require confirmation samples results as needed to protect public health. 

 (5) Monitoring Locations. 

 (a) Ground water systems and subpart H systems shall take a minimum of 

one sample at every entry point to the distribution system that is representative of each 

source after treatment (hereafter called a sampling point). The system shall take each 

sample at the same sampling point unless conditions make another sampling point 

more representative of each source or treatment plant. 

 (b) For purposes of Part V of this chapter, subpart H systems also include 

systems using a combination of surface water (or ground water under the direct 
18 

influence of surface water) and ground water not under the direct influence of surface 

water. 

 (c) If a system draws water from more than one source and the sources are 

combined before distribution, the system must sample at an entry point to the 

distribution system during periods of typical operating conditions (e.g., when water is 

representative of the sources being used). 

 (6) Confirmation Samples. The system shall take confirmation samples 

whenever a sample exceeds the maximum contaminant level for nitrate or nitrite and 

whenever an unregulated contaminant is detected. However, a system may take 

confirmation samples for other inorganic contaminants, organic contaminants, 

radionuclides, or secondary contaminants. For regulated contaminants, the results of 

confirmation samples shall be averaged with the first sampling results and the average 

used for the compliance determination as specified by subsection (7) below. 

Confirmation samples shall be collected at the same sampling point as soon as 

possible, but not later than two weeks, after the initial sample was taken. The 

Department shall delete results of obvious sampling errors from this calculation. 

 (7) Measurement of Compliance. Compliance with Rule 62-550.310, F.A.C., 

shall be determined based on the analytical results obtained at each sampling point. If 

one sampling point is in violation of an MCL, the system is in violation of the MCL. 

 (a) For systems that are taking more than one sample per year, compliance is 

determined by a running annual average of all samples taken at each sampling point. If 

the running annual average of any sampling point is greater than the maximum 

contaminant level, then the system is out of compliance. If the initial sample or a 

subsequent sample would cause the running annual average to be exceeded, then the 

system is immediately out of compliance. Any sample results which are below the 

regulatory detection limit shall be calculated as zero for purposes of determining the 

running annual average. If a system fails to collect the required number of samples, 

compliance with the MCL will be based on the total number of samples collected. 

Systems shall include all samples, taken within a quarter and analyzed under the 

provisions of this section (even if that number is greater than the minimum required), to 

obtain an average for the quarter to determine compliance with these rules. 

 (b) A system monitoring annually or less frequently for the inorganic 

contaminants, other than nitrate or nitrite, listed in subsection 62-550.310(1), F.A.C., the 

volatile organic contaminants listed in paragraph 62-550.310(4)(a), F.A.C., the synthetic 

organic contaminants listed in paragraph 62-550.310(4)(b), F.A.C., or the radiological 

contaminants listed in subsection 62-550.310(6), F.A.C., whose sample result exceeds 

the maximum contaminant level will not be considered in violation of the maximum 

contaminant level until it has completed one year of quarterly sampling. If the running 

annual average of any sampling point is greater than the maximum contaminant level, 

then the system is out of compliance. If the initial sample or a subsequent sample 

would cause the running annual average to exceed the maximum contaminant level, 

then the system is immediately out of compliance. For the purpose of calculating the 

running annual average, the initial exceedance is considered to be the first quarterly 

sample. Any sample result that is below the regulatory detection limit shall be 

calculated as zero for purposes of determining the running annual average. If a system 

fails to collect the required number of samples, compliance with the MCL will be based 

on the total number of samples collected. Rule 62-550.512, F.A.C., governs nitrate and 

nitrite, which are considered acute contaminants. 

 (c) The Department shall delete results of obvious sampling or analytic errors. 
19 

 (8) Systems Not in Compliance with a Maximum Contaminant Level (MCL or 

Maximum Residual Disinfectant Level (MRDL). A system that is not in compliance with 

an MCL or MRDL shall notify the Department within 48 hours of receiving the results 

(except for violations of the microbiological, nitrate, or nitrite MCL and acute violations of 

the MRDL for chlorine dioxide), and notify the public in accordance with Rule 62-

560.410, F.A.C. 

 (9) Waivers from Monitoring. Systems may request to receive a waiver from 

the requirement to monitor for organic contaminants pursuant to Rule 62-560.545, 

F.A.C. 

 (10) Reporting the results of analyses. All public water systems shall forward 

the results of analyses to the Department pursuant to Rule 62-550.730, F.A.C. 

 (11) New Systems or Sources. All new systems or systems that use a new 

source of water shall demonstrate compliance with all maximum contaminant levels. 

The system shall comply with the initial sampling frequencies as specified in this 

chapter. Routine and increased monitoring frequencies shall be conducted in 

accordance with the requirements in this chapter. 

Specific Authority 403.861(9), FS. Law Implemented 403.853(1), (3), 403.859(1), 

403.861(16), (17), FS. History -- New 11-19-87, Formerly 17-22.300, Amended 1-18-

89, 5-7-90, 1-1-93, 1-26-93, 7-4-93, Formerly 17-550.500, Amended 9-7-94, 8-1-00, 11-

27-01, 4-14-03, 11-28-04. 

 62-550.511 Asbestos Monitoring Requirements. 

All community and non-transient non-community systems that are susceptible to 

asbestos contamination (e.g. source water contaminated by asbestos or use of 

asbestos-cement pipe within the distribution system) shall monitor to determine 

compliance with the maximum contaminant level for asbestos specified in paragraph 

62-550.310(1)(a), F.A.C., according to the following: 

 (1) Each community and non-transient non-community water system that is 

susceptible to asbestos contamination (e.g., source water contaminated by asbestos or 

use of asbestos-cement pipe within the distribution system) shall monitor for asbestos 

during the year prescribed by paragraph 62-550.500(3)(e), F.A.C. Source waters in 

Florida are not considered to be susceptible to asbestos contamination. The water 

system shall monitor source waters when notified in writing by the Department that the 

system is susceptible to asbestos contamination. 

 (a) A system susceptible to asbestos contamination due solely to corrosion of 

asbestos-cement pipe shall take one sample at a tap served by asbestos-cement pipe 

and under conditions where asbestos contamination is most likely to occur. 

 (b) A system susceptible to asbestos contamination due solely to source 

water shall monitor in accordance with the provision of paragraph 62-550.500(5)(a), 

F.A.C. 

 (c) A system susceptible to contamination due both to its source water supply 

and corrosion of asbestos-cement pipe shall take one sample at a tap served by 

asbestos-cement pipe and under conditions where asbestos contamination is most 

likely to occur. 

 (2) Reports of the result of asbestos sampling shall describe the location 

where the sample was taken and the reason why that location was chosen. 

 (3) During the year the system is scheduled to monitor, the system shall send 

the Department an asbestos sampling plan, using Form 62-555.900(10) detailing the 

location and the conditions under which the sample is to be taken. 
20 

 (4) A system without asbestos-containing components shall certify to the 

Department in writing, using Form 62-555.900(10), that it is asbestos free. Certification 

shall satisfy the requirements of subsections (1), (2), and (3) above, and shall be 

submitted each nine-year compliance cycle during the specified year the system is 

required to monitor. 

 (5) The Department shall reduce the monitoring frequency to annually, for 

systems that exceeded the maximum contaminant level for asbestos and are required 

to monitor quarterly as prescribed by subsection 62-550.500(8), F.A.C., if the running 

annual average is below the maximum contaminant level. The Department shall reduce 

the monitoring frequency as provided in paragraph 62-550.500(3)(d), F.A.C., when the 

average of three consecutive years of monitoring results is less than 50% of the 

maximum contaminant level and no sample exceeds the maximum contaminant level. 

 (6) If the initial monitoring for asbestos was completed between January 1, 

1990 and December 31, 1992, and the results did not exceed the maximum 

contaminant level specified in paragraph 62-550.310(1)(a), F.A.C., the system may 

submit those results to the Department in lieu of monitoring during the first compliance 

cycle. 

 (7) Compositing of samples is allowed as provided in subsection 62-

550.550(4), F.A.C. 

Specific Authority 403.853(3), 403.861(9) FS. Law Implemented 403.853(1), (3), (7), 

403.861(16), (17) FS. History -- New 1-1-93, Amended 7-4-93, Formerly 17-550.511, 

Amended 9-7-94, 2-7-95, 12-9-96, 4-14-03, 11-28-04. 

 62-550.512 Nitrate and Nitrite Monitoring Requirements. 

All public water systems shall monitor to determine compliance with the maximum 

contaminant levels for nitrate and nitrite specified in paragraph 62-550.310(1)(a), F.A.C. 

 (1) Community or non-transient non-community water systems that are 

ground water systems shall monitor annually. Community or non-transient noncommunity water systems that are subpart H systems shall monitor quarterly. 

 (a) The repeat monitoring frequency for ground water systems shall be 

quarterly for at least one year following any one sample in which the concentration is 

greater than or equal to 50 percent of the maximum contaminant level. A ground water 

system may reduce the sampling frequency to annually after the running annual 

average is less than 50 percent of the maximum contaminant level. 

 (b) A subpart H system may reduce the sampling frequency to annually if 

each analytical result from the four most recent consecutive quarters is less than 50 

percent of the maximum contaminant level. A subpart H system shall return to quarterly 

monitoring if any one sample is greater than or equal to 50 percent of the maximum 

contaminant level. 

 (c) After the initial round of quarterly sampling is completed, each system that 

monitors annually shall take subsequent samples during the quarter that previously 

resulted in the highest analytical result. 

 (2) Each transient non-community water system shall monitor annually. The 

monitoring frequency for any transient non-community water system shall be quarterly 

for at least one year following any one sample in which the concentration of nitrite is 

greater than or equal to 50 percent of the maximum contaminant level as specified in 

Table 1, which is incorporated herein and appears at the end of this chapter. The 

system may return to annual monitoring when the running annual average is less than 

the maximum contaminant level. 
21 

 (3) A system that exceeds the maximum contaminant level for nitrate or nitrite 

as specified in paragraph 62-550.310(1)(a), F.A.C., shall comply with the following: 

 (a) Compliance with the maximum contaminant levels for nitrate and nitrite is 

determined based on one sample if the levels of these contaminants are below the 

maximum contaminant levels. If the levels of nitrate or nitrite exceed the maximum 

contaminant levels in the initial sample, a confirmation sample is required to be taken 

within 24 hours of notification of the analytical results of the first sample. Systems 

unable to comply with the requirement to take a confirmation sample within 24 hours 

shall immediately notify the public and the Department in accordance with subsection 

62-560.410(1), F.A.C. Systems exercising this option shall take and analyze a 

confirmation sample within two weeks of notification of the analytical results of the first 

sample. Compliance shall be determined based on the average of the initial and 

confirmation samples. 

 (b) If the average of the initial and confirmation samples, or the initial sample 

if no confirmation is taken, exceeds the maximum contaminant level, the system shall 

immediately notify the public pursuant to subsection 62-560.410(1), F.A.C. 

 (c) Systems shall notify the Department within 24 hours of determining that 

the maximum contaminant level has been exceeded. 

 (4) Compositing of samples is allowed as provided in subsection 62-

550.550(4), F.A.C. 

Specific Authority 403.853(3), 403.861(9) FS. Law Implemented 403.853(1), (3), (7), 

403.861(16), (17) FS. History -- New 1-1-93, Amended 7-4-93, Formerly 17-550.512, 

Amended 9-7-94, 2-7-95, 8-1-00, 11-27-01, 4-14-03, 1-17-05. 

 62-550.513 Inorganic Contaminants Monitoring Requirements. 

Community and non-transient non-community water systems shall monitor to determine 

compliance with the maximum contaminant levels of all the contaminants listed in 

paragraph 62-550.310(1)(a), F.A.C., (except asbestos, nitrate, and nitrite) as follows: 

 (1) Ground water systems shall take one sample at each sampling point 

during each compliance period. Subpart H systems shall take one sample annually. 

 (2) Systems that exceed the maximum contaminant level shall monitor 

quarterly. The system may decrease the quarterly monitoring requirement of this rule to 

the frequencies specified in subsection (1) above when the system has results from four 

consecutive quarters that are below the MCL, unless the system enters into another 

schedule as part of a formal compliance agreement with the Department. 

 (3) Conditions which require more frequent monitoring for lead than specified 

in subsections (1) and (2) above are found in Rule 62-550.800, F.A.C. 

 (4) Compositing of samples is allowed as provided in subsection 62-

550.550(4), F.A.C. 

Specific Authority 403.853(3), 403.861(9), FS. Law Implemented 403.853(1), (3), (7), 

403.861(16), (17), FS. History -- New 1-1-93, Formerly 17-550.513, Amended 2-7-95, 

11-27-01, 4-14-03. 

 62-550.514 Disinfectant Residuals and Disinfection Byproducts 

Monitoring Requirements. 

 (1) DISINFECTANT RESIDUALS. 

 (a) Community or non-transient non-community water systems adding a 

chemical disinfectant to the water in any part of the drinking water treatment process 

shall monitor in accordance with 40 CFR 141, subpart L, as adopted and modified under 
22 

Rule 62-550.821, F.A.C., to determine compliance with the maximum residual 

disinfectant levels specified in subsection 62-550.310(2), F.A.C. 

 (b) Transient non-community water systems (TWSs) using chlorine dioxide as 

a disinfectant or oxidant shall monitor in accordance with 40 CFR 141, subpart L, as 

adopted and modified under Rule 62-550.821, F.A.C., to determine compliance with the 

chlorine dioxide maximum residual disinfectant level specified in subsection 62-

550.310(2), F.A.C. 

 (2) DISINFECTION BYPRODUCTS. Community or non-transient noncommunity water systems adding a chemical disinfectant to the water in any part of the 

drinking water treatment process shall monitor in accordance with 40 CFR 141, subpart 

L, as adopted and modified under Rule 62-550.821, F.A.C., to determine compliance 

with the Stage 1 disinfection byproduct maximum contaminant levels specified in 

subsection 62-550.310(3), F.A.C. 

Specific Authority 403.853(3), 403.861(9) FS. Law Implemented 403.853(1), (3), (7), 

403.861(16), (17) FS. History -- New 1-1-93, Amended 7-4-93, Formerly 17-550.514, 

Amended 2-7-95, 11-27-01, 11-28-04. 

 62-550.515 Volatile Organic Contaminants Monitoring Requirements. 

Monitoring for the volatile organic contaminants listed in paragraph 62-550.310(4)(a), 

F.A.C., shall be conducted to determine compliance with the maximum contaminant 

levels. 

 (1) Monitoring Frequency. 

 (a) Initial base point monitoring. Each community or non-transient noncommunity water system shall take four consecutive quarterly samples for each 

contaminant listed in paragraph 62-550.310(4)(a), F.A.C., during the first compliance 

period. 

 (b) If the public water system does not detect any of the contaminants listed in 

paragraph 62-550.310(4)(a), F.A.C., it shall sample annually beginning with the next 

compliance period. 

 (c) If the initial monitoring for contaminants listed in paragraph 62-

550.310(4)(a), F.A.C., as required in subsection (1) of this section, was completed 

between January 1, 1988, and December 31, 1992, and the system did not detect any 

contaminant listed in paragraph 62-550.310(4)(a), F.A.C., then each ground water 

system and subpart H system may take one sample annually beginning January 1, 

1993. 

 (d) After a minimum of three years of annual sampling, ground water systems 

with no previous detection of any contaminant listed in paragraph 62-550.310(4)(a), 

F.A.C., may take one sample during each compliance period. 

 (e) Subpart H systems and ground water systems may apply to the 

Department for a monitoring waiver as specified in Rule 62-560.545, F.A.C. 

 (2) Sampling location. During the first quarter of the initial base point 

monitoring, ground water systems shall take a minimum of one sample that is 

specifically representative of each well. It may be collected as a raw or treated sample. 

Subsequent samples shall be taken as required by subsection 62-550.500(5), F.A.C. 

 (3) Monitoring Frequency After a Contaminant Is Detected. If a contaminant 

listed in paragraph 62-550.310(4)(a), F.A.C., is detected at a level exceeding 0.0005 

milligrams per liter in any sample: 

 (a) The system shall notify the Department within seven days of receiving the 

laboratory results and shall monitor quarterly for that contaminant at each sampling 

point that resulted in a detection. 
23 

 (b) The Department shall decrease the quarterly monitoring requirement of 

this section to annually if the system has results from four consecutive quarters that are 

below the MCL, unless the system enters into another schedule as part of a formal 

compliance agreement with the Department. After three years of annual sampling with 

no detection of the contaminant, a ground water system may decrease the annual 

monitoring requirement to one sample each compliance period. 

 (c) Systems that monitor annually shall monitor during the quarter that 

previously yielded the highest analytical result for that particular contaminant. 

 (4) Compositing of samples is allowed as provided in subsection 62-

550.550(4), F.A.C. 

Specific Authority 403.853(3), 403.861(9), FS. Law Implemented 403.853(1), (3), (7), 

403.861(16), (17), FS. History - New 1-1-93, Amended 1-26-93, 7-4-93, Formerly 17-

550.515, Amended 9-7-94, 2-7-95, 11-27-01, 4-14-03. 

 62-550.516 Synthetic Organic Contaminants Monitoring Requirements. 

Monitoring for the synthetic organic contaminants listed in paragraph 62-550.310(4)(b), 

F.A.C., shall be conducted as follows: 

 (1) Monitoring Frequency. 

 (a) Each community or non-transient non-community water system shall take 

four consecutive quarterly samples for each contaminant listed in paragraph 62-

550.310(4)(b), F.A.C., during each compliance period. 

 (b) Systems which serve more than 3,300 persons that do not detect a 

contaminant in the initial compliance period may reduce the sampling frequency to two 

quarterly samples, taken at least 60 days apart, in one year during each repeat 

compliance period. 

 (c) Systems which serve less than or equal to 3,300 persons that do not 

detect a contaminant in the initial compliance period may reduce the sampling 

frequency to one sample during each repeat compliance period. 

 (d) Systems may apply to the Department for a monitoring waiver as specified 

in Rule 62-560.545, F.A.C. 

 (2) Sampling location. During the first quarter of the initial base point 

monitoring, ground water systems shall take a minimum of one sample that is 

representative of each well. The sample may be collected as a raw or treated 

sample. Subsequent samples shall be taken as directed by subsection 62-550.500(5), 

F.A.C. 

 (3) Systems monitoring annually or less frequently whose sample result 

exceeds the regulatory detection level shall begin quarterly sampling. Detection as 

used in this rule shall be defined as a sample result greater than the concentration for 

each contaminant as listed in the column headed “Regulatory Detection Limit” in Table 

5, which appears at the end of this chapter. 

 (4) Monitoring Requirements After a Contaminant Is Detected. If an organic 

contaminant listed in paragraph 62-550.310(4)(b), F.A.C., is detected in any sample: 

 (a) The system shall notify the Department within seven days after receiving 

the laboratory results and shall monitor quarterly at each sampling point where a 

contaminant was detected. 

 (b) The Department shall decrease the quarterly monitoring requirement of 

this section to annually if the system has results from four consecutive quarters that are 

below the MCL, unless the system enters into another schedule as part of a formal 

compliance agreement with the Department. After three years of annual sampling with 
24 

no detection of any contaminant listed in paragraph 62-550.310(4)(b), F.A.C., systems 

may sample according to the schedule detailed in paragraphs (1)(b) and (c) above. 

 (c) Systems that monitor annually shall monitor during the quarter that 

previously yielded the highest analytical result. 

 (d) If monitoring detects heptachlor or heptachlor epoxide, then subsequent 

monitoring shall analyze for both contaminants. 

 (4) Compositing of samples is allowed as provided in subsection 62-

550.550(4), F.A.C. 

Specific Authority 403.853(3), 403.861(9), FS. Law Implemented 403.853(1), (3), (7), 

403.861(16), (17), F.S. History -- New 1-1-93, Amended 1-26-93, Formerly 17-

550.516, Amended 9-7-94, 2-7-95, 11-27-01, 4-14-03, 11-28-04. 

 62-550.517 Physical Characteristics Monitoring Requirements. 

 (1) All community, non-transient non-community, and transient noncommunity public water systems that use any surface water sources, or ground water 

sources under the direct influence of surface water, shall monitor for turbidity pursuant 

to Rule 62-550.560, F.A.C. 

 (2) All public water systems using ground water not under the direct influence 

of surface water are required by subsections 62-550.518(2), (3), and (10), F.A.C., to 

periodically sample the raw ground water for microbiological contamination. In the 

event a raw water sample is positive for total coliform bacteria, the system shall begin 

monitoring the raw water source for turbidity, pH, temperature, nitrates, and conductivity 

when notified in writing by the Department to do so and shall perform a microscopic 

particulate analysis and particle counter analysis when notified in writing by the 

Department to do so. These data will be used by the Department to determine whether 

the system’s water source is under the direct influence of surface water. If the 

Department renders a written decision that the source is not under the direct influence 

of surface water, or if no subsequent raw water samples are positive for bacteria during 

the following one-year period, monitoring of the raw water for turbidity, pH, temperature, 

and conductivity will no longer be required. If the Department determines that a system 

is under the direct influence of surface water, the system shall comply with Rule 62-

550.817, F.A.C. In the event the system notifies the Department in writing that it 

disagrees with the Department's determination, the system shall have six months in 

which to commission and complete an independent analysis of the system. Upon 

receipt of such an independent analysis, the Department will reconsider its 

determination and notify the system of its decision and include the notice of rights to an 

administrative hearing as provided in Rule 62-110.106, F.A.C. 

Specific Authority 403.853(3), 403.861(9), FS. Law Implemented 403.853(1), (3), (7), 

403.861(16), (17), FS. History -- New 1-1-93, Amended 7-4-93, Formerly 17-550.517, 

Amended 9-7-94, 8-1-00, 11-27-01, 4-3-03. 

 62-550.518 Microbiological Monitoring Requirements. 

 (1) All public water systems shall analyze for coliform bacteria to determine 

compliance with subsection 62-550.310(5), F.A.C. Public water systems shall collect 

total coliform samples at sites that are representative of water throughout the 

distribution system and in accordance with a written sampling plan that addresses 

location, timing, frequency, and rotation period. These plans shall be available for 

review and possible revision on the occasion of a sanitary survey conducted by the 

Department. Descriptions of sampling locations shall be specific, i.e., numbered street 
25 

addresses or lot numbers. Pressure tank or plant tap samples are not acceptable for 

determining compliance. 

 (2) Total coliform samples shall be taken at regular intervals and in numbers 

proportionate to the population served by the system. Community water systems, nontransient non-community water systems, transient non-community water systems that 

are subpart H systems and transient non-community water systems that serve more 

than 1,000 persons per day during any one month shall take monthly distribution system 

samples. In addition, systems that are using ground water not under the direct 

influence of surface water shall take a minimum of one monthly raw water sample that is 

representative of each ground water source (i.e., well) not under the direct influence of 

surface water. For purposes of this subsection, consecutive systems that receive any 

finished water originating from a subpart H system are considered subpart H systems. 

In no event shall the number of distribution system samples be less than as set forth 

below: 
26 

POPULATION SERVED 

MINIMUM NUMBER OF 

ROUTINE SAMPLES PER 

MONTH 

 25 to 2,500 

2,501 to 3,300 

3,301 to 4,100 

4,101 to 4,900 

4,901 to 5,800 

5,801 to 6,700 

6,701 to 7,600 

7,601 to 8,500 

 8,501 to 12,900 

12,901 to 17,200 

17,201 to 21,500 

21,501 to 25,000 

25,001 to 33,000 

33,001 to 41,000 

41,001 to 50,000 

50,001 to 59,000 

59,001 to 70,000 

70,001 to 83,000 

83,001 to 96,000 

 96,001 to 130,000 

130,001 to 220,000 

220,001 to 320,000 

320,001 to 450,000 

450,001 to 600,000 

600,001 to 780,000 

780,001 to 970,000 

 970,001 to 1,230,00 

1,230,001 to 1,520,000 

1,520,001 to 1,850,000 

1,850,001 to 2,270,000 

2,270,001 to 3,020,000 

3,020,001 to 3,960,000 

 3,960,001 or more 

2 

3 

4 

5 

6 

7 

8 

9 

10 

15 

20 

25 

30 

40 

50 

60 

70 

80 

90 

100 

120 

150 

180 

210 

240 

270 

300 

330 

360 

390 

420 

450 

480 
27 

 (3) Transient non-community water systems using only ground water not 

under the direct influence of surface water and serving 1,000 or fewer persons shall 

monitor at the rate of two distribution system samples in each calendar quarter during 

which the system provides water to the public. In addition, such systems shall take a 

minimum of one quarterly raw water sample that is representative of each ground water 

source (i.e., well). 

 (4) Public water systems shall collect distribution system samples at regular 

intervals throughout the month, except that a system that uses only ground water not 

under the direct influence of surface water and that serves 4,900 persons or fewer may 

collect all required samples on a single day if the samples are taken from different sites. 

 (5) Subpart H systems in an interim period per subparagraph 62-

550.817(2)(a)2., F.A.C., until filtration is installed in compliance with 40 CFR 141, 

subpart H, adopted by Rule 62-550.817, F.A.C., shall collect at least one total coliform 

sample near the first service connection each day the turbidity level of the source water 

exceeds one NTU, measured as specified in 40 CFR 141.74(b)(2), adopted by Rule 62-

550.817, F.A.C. This sample shall be analyzed for the presence of total coliforms. 

When any turbidity measurement in any day exceeds one NTU, the system shall collect 

this coliform sample within 24 hours unless the Department determines that the system, 

for logistical reasons outside the system's control, cannot have the sample analyzed 

within 30 hours of collection. In this case, the Department shall specify how much time 

the system has to collect the sample. Sample results from this coliform monitoring shall 

be included in determining compliance with the maximum contaminant level for total 

coliforms in subsection 62-550.310(5), F.A.C. 

 (6) Special purpose samples, such as those taken to determine whether 

disinfection practices are sufficient following pipe placement, replacement, or repair, 

shall not be used to determine compliance with the maximum contaminant level for total 

coliforms in subsection 62-550.310(5), F.A.C. Repeat distribution system samples 

taken pursuant to subsection (7) of this section are not considered special purpose 

samples, and shall be used to determine compliance with the maximum contaminant 

level for total coliforms in subsection 62-550.310(5), F.A.C. 

 (7) Additional or Repeat Monitoring. 

 (a) If a raw water sample is total-coliform-positive, the public water system 

shall disinfect and bacteriologically survey the relevant well(s) in accordance with 

subsection 62-555.315(6), F.A.C., when notified in writing by the Department to do so 

and shall conduct physical characteristics monitoring in accordance with subsection 62-

550.517(2), F.A.C., when notified in writing by the Department to do so. 

 (b) If a routine distribution system sample is total-coliform-positive, the public 

water system shall collect a set of repeat distribution system samples within 24 hours of 

being notified of the positive result. The system shall collect all repeat samples on the 

same day. A system that collects monthly routine samples shall collect no fewer than 

three repeat samples for each total-coliform-positive sample found. A transient noncommunity water system that collects quarterly routine samples shall collect no fewer 

than four repeat samples for each total-coliform-positive sample found. The 

Department shall extend the 24-hour limit on a case-by-case basis if the system has a 

logistical problem that is beyond its control in collecting the repeat samples within 24 

hours. If an extension is granted, the Department shall specify how much time the 

system has to collect the repeat samples. If a routine distribution system sample is 

total-coliform-positive and the public water system is collecting fewer than five routine 

distribution system samples per month, the system also shall comply with the sampling 

requirements in subsection 62-550.518(8), F.A.C. 
28 

 (c) The system shall collect at least one repeat distribution system sample 

from the sampling tap where the original total-coliform-positive sample was taken, at 

least one repeat distribution system sample at a tap within five service connections 

upstream of the original sampling site, and at least one repeat distribution system 

sample at a tap within five service connections downstream of the original sampling site. 

If a total-coliform-positive sample is at the beginning or end of the distribution system, or 

one service connection away from the beginning or end of the distribution system, the 

system need not collect a repeat sample upstream or downstream of the original 

sampling site, whichever is applicable, but still must collect the total number of repeat 

samples specified in paragraph (b) above. 

 (d) If any repeat distribution system sample in the set is total-coliform-positive 

the public water system shall collect an additional set of repeat distribution system 

samples in the manner specified in paragraphs (7)(b) and (7)(c) of this section. The 

public water system shall collect the additional samples within 24 hours of being notified 

of the positive result unless the Department extends the limit as provided in paragraph 

(7)(b) of this section. The system shall repeat this process until either total coliforms are 

not detected in one complete set of repeat samples or the system determines that the 

maximum contaminant level for total coliforms in subsection 62-550.310(5), F.A.C., has 

been exceeded and notifies the Department in accordance with subsections (10) and 

(11) below. 

 (e) Results of all routine and repeat distribution system samples not 

invalidated by the Department shall be included in determining compliance with the 

maximum contaminant level for total coliforms in subsection 62-550.310(5), F.A.C. 

 (8) If a system collecting fewer than five routine distribution system samples 

per month has one or more total-coliform-positive samples and the Department does 

not invalidate the sample(s) under paragraph 62-550.518(9)(a), F.A.C., it shall collect at 

least five routine distribution system samples during the next month the system provides 

water to the public. 

 (9) Invalidation of Total Coliform Samples. A total-coliform-positive sample 

invalidated under this subsection does not count toward meeting the minimum 

monitoring requirements of this section. Department invalidation of a total-coliformpositive sample invalidates subsequent fecal-coliform or E.-coli-positive results on the 

same sample. 

 (a) The Department shall invalidate a total-coliform-positive sample only if any 

of the following conditions are met: 

 1. The laboratory establishes that improper sample analysis caused the total 

coliform-positive result. 

 2. The Department, on the basis of the results of the repeat distribution 

system samples collected as required by subsection (7) of this section, determines that 

the total-coliform-positive sample resulted from a non-distribution system plumbing 

problem. The Department shall not invalidate a sample on the basis of repeat samples 

unless all repeat samples collected at the same tap as the original total-coliform-positive 

sample are also total-coliform-positive and all repeat samples collected within five 

service connections of the original tap are total-coliform-negative. The Department shall 

not invalidate a total-coliform-positive sample on the basis of repeat samples if all the 

repeat samples are total-coliform-negative or if the public water system has only one 

service connection. 

 3. The Department has received in writing substantial grounds to conclude 

that a total-coliform-positive result is due to a circumstance or condition that does not 

reflect raw water quality or water quality in the distribution system. In this case, the 
29 

system shall still collect all repeat distribution system samples required under 

subsection (7) of this section and use them to determine compliance with the maximum 

contaminant level for total coliforms in subsection 62-550.310(5), F.A.C. The written 

documentation shall describe the specific cause of the total-coliform-positive sample 

and what action the system has taken, or will take, to correct this problem. The 

Department shall not invalidate a total-coliform-positive sample solely on the grounds 

that all repeat samples are total-coliform-negative. 

 (b) Unless total coliforms are detected, a laboratory shall invalidate a total 

coliform sample if the sample produces a turbid culture in the absence of gas production 

using an analytical method where gas formation is examined (e.g., the Multiple-Tube 

Fermentation Technique); produces a turbid culture in the absence of an acid reaction 

in the Presence-Absence (P-A) Coliform Test; or, exhibits confluent growth or produces 

colonies too numerous to count with an analytical method using a membrane filter (e.g., 

Membrane Filter Technique). If a laboratory invalidates a sample because of such 

interference, the system shall report to the Department in accordance with subsection 

62-550.730(1), F.A.C., and collect another sample from the same location as the 

original sample within 24 hours of being notified of the interference problem. The 

system shall continue to resample every 24 hours and have the samples analyzed until 

it obtains a valid result. The Department shall expand the 24-hour requirement on a 

case-by-case basis if the system has a logistical problem that is beyond its control in 

collecting the repeat samples within 24 hours. If an extension is granted, the 

Department shall specify how much time the system has to collect the repeat samples. 

 (10) Fecal Coliforms/Escherichia coli (E. coli) Testing. If any raw water sample 

is total-coliform-positive, the system shall analyze that total-coliform-positive culture to 

determine if E. coli is present. If any routine or repeat distribution system sample is 

total-coliform-positive, the system shall analyze that total-coliform-positive culture to 

determine if fecal coliforms are present or shall analyze that total-coliform-positive 

culture to determine if E. coli is present. If fecal coliform or E. coli is present in any 

repeat distribution system sample, the system shall notify the Department in accordance 

with paragraph (11)(a) below. If fecal coliforms or E. coli is present in any routine 

distribution system sample or if E. coli is present in any raw water sample that is 

representative of a well previously considered to be meeting the bacteriological 

requirements in subsection 62-555.315(6), F.A.C., the system shall notify the 

appropriate Department of Environmental Protection (DEP) District Office or appropriate 

Approved County Health Department (ACHD) by the end of the day that the system 

learns of the test result unless the system learns of the result after the appropriate DEP 

District Office or appropriate ACHD is closed, in which case the system shall notify the 

appropriate DEP District Office of appropriate ACHD before the end of the next 

business day. 

 (11) Response to Violation. 

 (a) A public water system that has an acute violation of the total coliform 

maximum contaminant level (MCL) as specified in paragraph 62-550.310(5)(b), F.A.C., 

shall report the violation to the Department as soon as practicable but no later than 24 

hours after the system learns of the violation and shall notify the public in accordance 

with Rule 62-560.410, F.A.C. A public water system that has a non-acute violation of 

the total coliform MCL as specified in paragraph 62-550.310(5)(a), F.A.C., shall report 

the violation to the Department no later than the end of the next business day after it 

learns of the violation, and shall notify the public in accordance with Rule 62-560.410, 

F.A.C. 
30 

 (b) A public water system that has failed to comply with a coliform monitoring 

requirement shall report the monitoring violation to the Department within 48 hours after 

the system discovers the violation, and shall notify the public in accordance with Rule 

62-560.410, F.A.C. 

Specific Authority 403.853(3), 403.861(9), FS. Law Implemented 403.853(1), (3), (7), 

403.861(16), (17), FS. History -- New 1-1-93, Amended 7-4-93, Formerly 17-550.518, 

Amended 9-7-94, 2-7-95, 8-1-00, 11-27-01, 4-3-03. 

 62-550.519 Radionuclides Monitoring Requirements. 

This section contains monitoring frequency and compliance requirements for 

radionuclides for community water systems. 

 (1) Monitoring and Compliance Requirements for Gross Alpha Particle 

Activity, Radium-226, Radium-228, and Uranium. 

 (a) Community water systems (CWSs) shall conduct monitoring to determine 

compliance with paragraph 62-550.310(6)(a), F.A.C. 

 1. All existing CWSs shall sample at every entry point to the distribution 

system under normal operating conditions. 

 2. All new community water systems or community water systems that use a 

new source of water shall begin to conduct initial monitoring for the new source within 

the first quarter after initiating use of the source. 

 3. The conversion factor for converting uranium results expressed in pCi/L to 

ug/L is 1.50 ug/pCi. When converting uranium results expressed in ug/L to pCi/L, use 

pCi/ug. 

 4. Compliance and reduced monitoring frequencies shall be calculated based 

on the analytical results. The analytical result is the number that the laboratory reports, 

not including (i.e., not adding or subtracting) the standard deviation. 

 (b) Initial monitoring: Systems shall conduct initial monitoring for gross alpha 

particle activity, radium-226, radium-228, and uranium as follows: 

 1. Systems shall collect four consecutive quarterly samples at all sampling 

points. Systems serving more than 3,300 people shall begin sampling January 1, 2005. 

Systems serving 3,300 or fewer people shall begin sampling January 1, 2006. New 

systems and new plants will begin monitoring as directed by the Department. 

 2. For gross alpha particle activity, uranium, radium-226, and radium-228 

monitoring, the Department shall waive the final two quarters of initial monitoring for a 

sampling point if the results of the samples from the previous two quarters are below the 

regulatory detection limit. 

 3. If the average of the initial monitoring results for any sampling point is 

above the MCL, the system is out of compliance. The system must continue to collect 

and analyze quarterly samples at the sampling point until the system has results from 

four consecutive quarters that are at or below the MCL, unless the system enters into 

another schedule as part of a formal compliance agreement with the Department. 

 4. During the initial monitoring period, if the average of the results for a given 

contaminant is above half the MCL but at or below the MCL, systems serving more than 

3,300 people shall sample again for that contaminant during 2008. Systems serving 

3,300 or fewer people shall sample again during 2009. 

 5. During the initial monitoring period, if the average of the results for a given 

contaminant is at or above the regulatory detection limit but at or below half the MCL, 

systems serving more than 3, 300 people shall sample again for that contaminant 

during 2011. Systems serving 3,300 or fewer people shall sample again during 2012. 
31 

 6. Systems serving more than 3,300 people that are required to sample 

during the initial monitoring period and have no detections shall sample again during 

2014. Systems serving 3,300 or fewer people that are required to sample during the 

initial monitoring period and have no detections shall sample again during 2015. 

 (c) Use of Historical Data. Under the following conditions, data gathered 

between June 1, 2000, and December 8, 2003, may be used to satisfy the requirement 

to monitor during the initial monitoring period described in paragraph 62-550.519(1)(b), 

F.A.C., above. 

 1. The water system shall have at least one sample result from every point of 

entry for gross alpha and radium-228; 

 2. The gross alpha result shall not exceed 15 pCi/L; 

 3. The system must either sample for radium-226 or may substitute the gross 

alpha value if it is less than 5 pCi/L. If the gross alpha particle activity result is less than 

the regulatory detection level of 3 pCi/L, half the detection level (1.5 pCi/L), shall be 

used if substituting for radium-226; and 

 4. The combined value for radium-226 and radium-228 shall not exceed 5 

pCi/L. 

 5. Systems that use historical data gathered between June 1, 2000, and 

December 8, 2003, in lieu of testing during the initial monitoring period do not need to 

monitor again until 2008 for systems serving 3,300 or more people, and 2009 for 

systems serving fewer than 3,300 people. 

 (d) Routine monitoring begins January 1, 2008, for community water systems 

serving 3,300 or more people. Community water systems serving fewer than 3,300 

people begin monitoring January 1, 2009. Routine monitoring will take place every 

three years and must meet the following conditions: 

 1. The water system shall have at least one sample result from every point of 

entry for gross alpha and radium-228. 

 2. The gross alpha result shall not exceed 15 pCi/L. The system may either 

sample for uranium or may substitute the gross alpha value if it is less than 15 pCi/L. If 

the gross alpha value exceeds 15 pCi/L, the system must sample for uranium. The 

uranium result shall be subtracted from the gross alpha result in order to determine 

compliance with the gross alpha MCL. In the event the gross alpha result minus the 

uranium result exceeds 15 pCi/L, the system shall begin quarterly monitoring for gross 

alpha. 

 3. The uranium value shall not exceed 30 ug/L (20 pCi/L). In the even the 

uranium value exceeds 30 ug/L (20 pCi/L), the system shall begin quarterly monitoring 

for uranium. 

 4. The system must either sample for radium-226 or may substitute the gross 

alpha value if it is less than 5 pCi/L. If the gross alpha value result is less than the 

regulatory detection level of 3 pCi/L, half the detection level (1.5 pCi/L) shall be used if 

substituting for radium-226. 

 5. The combined value for radium-226 and radium-228 shall not exceed 5 

pCi/L. In the event the result exceeds 5 pCi/L, the system shall begin quarterly 

monitoring for both radium-226 and radium-228. 

 (e) Reduced monitoring. The Department shall allow community water 

systems to reduce the future frequency of monitoring from once every three years to 

once every six or nine years at each sampling point, based on the following criteria: 

 1. If the monitoring result for a contaminant (i.e., gross alpha particle activity, 

uranium, radium-226, radium-228) is below the regulatory detection limit specified in 
32 

paragraph 62-550.310(6)(c), F.A.C., above, the system shall collect and analyze for that 

contaminant at that sampling point every nine years. 

 2. For gross alpha particle activity and uranium, if the monitoring result for 

each contaminant is at or above the regulatory detection limit but at or below half the 

MCL, the system shall collect and analyze for that contaminant using at least one 

sample at that sampling point every six years. For radium-226 and radium-228, the 

analytical results shall be combined. If the combined monitoring result for radium-226 

and radium-228 is at or above 1 pCi/L, but at or below half the MCL (2.5 pCi/L), the 

system shall collect and analyze for those contaminants at that sampling point every six 

years. 

 3. For gross alpha particle activity and uranium, if the monitoring result for 

each contaminant is above half the MCL but at or below the MCL, the system shall 

remain on routine monitoring and shall collect and analyze at least one sample at that 

sampling point every three years. If the combined monitoring result for radium-226 and 

radium-228 is above half the MCL but at or below the MCL, the system shall remain on 

routine monitoring and shall collect and analyze at least one sample at that sampling 

point every three years. 

 4. Systems will multiple entry points to the distribution system could have 

different monitoring schedules for radionuclides at each entry point. In the event such a 

situation occurs, the system shall be responsible for keeping track of its monitoring 

schedule. 

 (f) Systems shall use the samples collected during the initial, routine or 

reduced monitoring period to determine the monitoring frequency for subsequent 

monitoring periods (e.g., if a system’s sampling point is on a nine year monitoring 

period, and the sample result is above half the MCL, then the next monitoring period for 

that sampling point is three years). 

 (g) If a system has a monitoring result that exceeds the MCL, the system shall 

collect and analyze quarterly samples at that sampling point until the system has results 

from four consecutive quarters that are below the MCL, unless the system enters into 

another schedule as part of a formal compliance agreement with the Department. 

When the combined MCL for radium-226 and radium-228 exceeds the MCL of 5 pCi/L, 

the system shall begin quarterly monitoring for both radium-226 and radium-228. 

Substitution of a gross alpha particle activity result for radium-226 shall not be allowed 

when the combined result exceeds the MCL. 

 (h) Compositing. To fulfill quarterly monitoring requirements for gross alpha 

particle activity, radium-226, radium-228, or uranium, a system may composite up to 

four consecutive quarterly samples from a single entry point if analysis is done within a 

year of the first sample. The Department shall treat analytical results from the 

composited sample as the average analytical result to determine compliance with the 

MCLs and the future monitoring frequency. If the analytical result from the composited 

sample is greater than half the MCL, the Department shall direct the system to take one 

year of additional quarterly samples before allowing the system to sample under a 

reduced monitoring schedule. 

 (i) A gross alpha particle activity measurement may be substituted for the 

required radium-226 measurement provided that the measured gross alpha particle 

activity does not exceed 5 pCi/L. A gross alpha activity measurement may be 

substituted for the required uranium measurement provided that the measured gross 

alpha particle activity does not exceed 15 pCi/L. When a system uses a gross alpha 

particle activity measurement in lieu of a radium-226 and/or a uranium measurement, 
33 

the gross alpha particle activity analytical result shall be used to determine the future 

monitoring frequency for radium-226 and/or uranium. 

 (j) If any sample result is less than the regulatory detection limit, zero shall be 

used. If the gross alpha particle activity result is less than the regulatory detection limit 

and is used in lieu of actual measurements for either radium-226 or uranium, then half 

the regulatory detection limit (1.5 pCi/L) shall be used. 

 (2) Monitoring and Compliance Requirements for Beta Particle and Photon 

Radioactivity. To determine compliance with the maximum contaminant levels in 

paragraph 62-550.310(6)(b), F.A.C., for beta particle and photon radioactivity, a system 

shall monitor at a frequency as follows: 

 (a) Community public water systems (both surface water and ground water) 

notified in writing by the Department as being vulnerable to such contamination shall 

sample for beta particle and photon radioactivity. Systems must collect quarterly 

samples for beta emitters and annual samples for tritium and strontium-90 at each entry 

point to the distribution system (hereafter called a sampling point), beginning within one 

quarter after being notified by the Department. Systems already designated by the 

Department must continue to sample until the Department reviews and either reaffirms 

or removes the designation. 

 1. If the gross beta particle activity minus the naturally occurring potassium40 beta particle activity at a sampling point has a running annual average (computed 

quarterly) less than or equal to 50 pCi/L (screening level), the Department shall reduce 

the frequency of monitoring at that sampling point to once every 3 years. Systems shall 

collect all samples required in paragraph (2)(a) above during the reduced monitoring 

period. 

 2. For systems in the vicinity of a nuclear facility, the Department may allow 

the community water system to use environmental surveillance data collected by the 

nuclear facility in lieu of monitoring at the system’s entry point(s), when the Department 

determines that such data is applicable to a particular water system. In the event that 

there is a release from a nuclear facility, systems that are using surveillance data shall 

begin monitoring at the community water system’s entry point(s) in accordance with 

paragraph (2)(a) above. 

 (b) Community water systems (both surface and ground water) designated by 

the Department as using waters contaminated by effluents from nuclear facilities shall 

sample for beta particle and photon radioactivity. Systems shall collect quarterly 

samples for beta emitters and iodine-131 and annual samples for tritium and strontium90 at each entry point to the distribution system (hereafter call a sampling point), 

beginning within one quarter after being notified by the Department. Systems already 

designated by the Department as systems using waters contaminated by effluents from 

nuclear facilities shall continue to sample until the Department reviews and either 

reaffirms or removes the designation. 

 1. Quarterly monitoring for gross beta particle activity shall be based on the 

analysis of monthly samples or the analysis of a composite of three samples. The 

former is recommended. 

 2. For iodine-131, a composite of five consecutive daily samples shall be 

analyzed once each quarter. As ordered by the Department, more frequent monitoring 

shall be conducted when iodine-131 is identified in the finished water. 

 3. Annual monitoring for strontium-90 and tritium shall be conducted by 

means of the analysis of a composite of four consecutive quarterly samples or analysis 

of four quarterly samples. The latter procedure is recommended. 
34 

 4. If the gross beta particle activity beta minus the naturally occurring 

potassium-40 beta particle activity at a sampling point has a running annual average 

(computed quarterly) less than or equal to 15 pCi/L (screening level), the Department 

shall reduce the frequency of monitoring at that sampling point to every 3 years. 

Systems shall collect all samples required in paragraph (2)(b) above during the reduced 

monitoring period. 

 5. For systems in the vicinity of a nuclear facility, the Department may allow 

the CWS to use environmental surveillance data collected by the nuclear facility in lieu 

of monitoring at the system’s entry point(s), when the Department determines that such 

data is applicable to a particular water system. In the event that there is a release from 

a nuclear facility, systems that are using surveillance data shall begin monitoring at the 

entry point(s) in accordance with paragraph (2)(b) above. 

 (c) Community water systems designated by the Department to monitor for 

beta particle and photon radioactivity can not apply to the Department for a waiver from 

the monitoring frequencies specified in paragraph (2)(a) or (2)(b) above. 

 (d) Community water systems may analyze for naturally occurring potassium40 beta particle activity from the same or equivalent sample used for the gross beta 

particle activity analysis. Systems are allowed to subtract the potassium-40 beta 

particle activity value from the total gross beta particle activity value to determine if the 

screening level is exceeded. The potassium-40 beta particle activity shall be calculated 

by multiplying elemental potassium concentrations (in mg/L) by a factor of 0.82. 

 (e) If the gross beta particle activity minus the naturally occurring potassium40 beta particle activity exceeds the appropriate screening level, an analysis of the 

sample shall be performed to identify the major radioactive constituents present in the 

sample and the appropriate doses shall be calculated and summed to determine 

compliance with subparagraphs 62-550.310(6)(b)1. and 2., F.A.C. Doses shall also be 

calculated and combined for measured levels of tritium and strontium to determine 

compliance. 

 (f) Systems shall monitor monthly at the sampling point(s) that exceed the 

maximum contaminant level in paragraph 62-550.310(6)(b), F.A.C., beginning the 

month after the exceedance occurs. Systems shall continue monthly monitoring until 

the system has established, by a running average of 3 monthly samples, that the MCL 

is being met. Systems that establish that the MCL is being met shall return to quarterly 

monitoring until they meet the requirements set forth in paragraph (2)(a)1. or (2)(b)4., 

above. 

Specific Authority 403.853(3), 403.861(9), FS. Law Implemented 403.853(1), (3), (7), 

403.861(16), (17), FS. History -- New 1-1-93, Amended 7-4-93, Formerly 17-550.519, 

Amended 2-7-95, 11-27-01, 4-14-03, 11-28-04. 

 62-550.520 Secondary Contaminants Monitoring Requirements. 

 (1) Analysis to determine compliance with Rule 62-550.320, F.A.C., shall be 

conducted by all community water systems and shall be repeated once each 

compliance period. Lime softening facilities may operate above 8.5 but less than or 

equal to 9.0 pH units without Department approval, and may operate above 9.0, but less 

than or equal to 10.0 pH units upon approval by the Department of a written 

demonstration by the water system that operating at the higher pH will not cause the 

treatment plant to suffer operational failures, that minimum disinfectant levels can be 

maintained throughout the distribution system, and that the system can remain in 

compliance with the lead and copper and microbiological provisions of Chapters 62-550 

and 62-555, F.A.C. Surface water systems or ground water systems that are required to 
35 

demonstrate the effectiveness of their primary disinfection treatment process to meet 

Giardia lamblia or virus inactivation requirements shall operate within a pH range as 

specified for their disinfectant in the tables in Appendix E of the Guidance Manual 

adopted in subsection 62-555.335(1), F.A.C. 

 (2) If the results of an analysis indicate that the level of fluoride exceeds the 

secondary maximum contaminant level, the supplier of water shall notify the public 

pursuant to Rule 62-560.430, F.A.C., and take corrective action as approved by the 

Department pursuant to Rule 62-560.700, F.A.C. 

 (3) With the exception of pH, the system is in violation if the level of a secondary 

contaminant at any sampling point is greater than the secondary maximum contaminant 

level. 

Specific Authority 403.861(9), FS. Law Implemented 403.853(1), (3), 403.861(16), 

(17), FS. History -- New 11-19-87, Formerly 17-22.320, Amended 1-18-89, 5-7-90, 1-1-

93, 7-4-93, Formerly 17-550.520, Amended 11-28-04. 

 62-550.521 Unregulated Contaminants Monitoring Requirements. 

If a sample analysis shows the presence of an unregulated contaminant, the supplier of 

water shall take a confirmation sample in accordance with subsection 62-550.500(6), 

F.A.C., and notify the Department within seven days after the result of the confirmation 

sample is received. If the presence of the contaminant is determined by the State 

Health Officer and the Department to constitute an unreasonable risk to health, 

corrective action, including additional monitoring, shall be taken by the supplier of water 

as approved by the Department, pursuant to Rule 62-560.700, F.A.C., based on the 

potential health risks of the contaminant level, the estimated time needed to take 

corrective action, and any other data known to the Department. 

Specific Authority 403.853(3), 403.861(9), FS. Law Implemented 403.853(1), (3), 

403.861(16), (17), FS. History -- New 1-1-93, Amended 7-4-93, Formerly 17-550.521, 

Amended 9-7-94, 2-7-95, 8-1-00. 

 62-550.540 Monitoring of Consecutive Public Water Systems. 

 (1) Consecutive systems shall conduct asbestos monitoring in their 

distribution systems in accordance with Rule 62-550.511, F.A.C.; shall conduct 

microbiological monitoring in their distribution systems in accordance with Rule 62-

550.518, F.A.C.; shall comply with the lead and copper control requirements in Rule 62-

550.800, F.A.C.; and shall conduct residual disinfectant monitoring at a remote point in 

their distribution systems in accordance with subsection 62-555.350(6), F.A.C, to verify 

that the minimum residual disinfectant concentration required by subsection 62-

555.350(6), F.A.C., is being maintained throughout their distribution systems. In 

accordance with subparagraph 62-550.817(1)(b)2., F.A.C., consecutive systems that 

receive any finished water originating from a subpart H system shall comply with the 

distribution system residual disinfectant monitoring requirements in 40 CFR 141.74(c)(3) 

as adopted in subsection 62-550.817(2), F.A.C. Consecutive systems that add a 

chemical disinfectant to the water shall conduct residual disinfectant monitoring in 

accordance with subsection 62-550.514(1) and Rule 62-550.821, F.A.C., and shall 

conduct disinfection byproduct monitoring in accordance with subsection 62-550.514(2) 

and Rule 62-550.821, F.A.C. 

 (2) Consecutive systems that treat or retreat a wholesale system’s finished 

water in a manner that could cause violation of any applicable primary or secondary 

standard in Part III of this chapter shall conduct additional monitoring or comply with 

additional requirements (i.e., monitoring or requirements in addition to the monitoring 
36 

and requirements specified in subsection (1) above) when notified in writing by the 

Department to do so. Such additional monitoring or requirements shall be for the 

standard(s) in question and shall be consistent with the monitoring or requirements 

specified in this chapter for the standard(s) in question. 

 (3) Consecutive systems that have their own source(s) of raw water or that 

receive raw water from one or more other water systems shall monitor such water in 

accordance with Rules 62-550.500, 62-550.512, 62-550.513, 62-550.515, 62-550.516, 

62-550.517, 62-550.519, 62-550.520, and 62-550.521, F.A.C.; the source water 

asbestos monitoring requirements under Rule 62-550.511, F.A.C.; and the raw water 

microbiological monitoring requirements under Rule 62-550.518, F.A.C.; and shall 

comply with any primary or secondary treatment technique requirements applicable to 

such water. 

 (4) Upon written approval by the Department, consecutive systems that 

receive all of their finished water from a single wholesale system may consolidate their 

monitoring requirements with those of the wholesale system or those of another 

interconnected consecutive system that receives all of its finished water from the same 

wholesale system. To obtain the Department’s approval, consolidating systems shall 

submit to the appropriate Department of Environmental Protection District Office or 

appropriate Approved County Health Department the following: 

 (a) Documentation that interconnection of the systems justifies treating them 

as a single system for monitoring purposes; 

 (b) Written asbestos, residual disinfectant and disinfection byproducts, 

microbiological, or lead and copper sampling/monitoring plans, as applicable, for the 

consolidated system; and 

 (c) A written agreement between the systems establishing the following: 

 1. The one system that shall be solely accountable to the Department for 

compliance with applicable monitoring requirements and associated maximum 

contaminant levels, maximum or minimum residual disinfectant levels, treatment 

technique requirements, reporting requirements, public notification requirements, and 

recordkeeping requirements for the consolidated system; and 

 2. Each system’s responsibilities to the other for providing treatment, taking 

corrective action, monitoring, reporting, notifying the public, and keeping records. 

 (5) Consecutive systems that receive any finished water originating from a 

subpart H system shall comply with the disinfectant residual monitoring requirements of 

subparagraph 62-550.817(1)(b)2., F.A.C. 

Specific Authority 403.861(9), FS. Law Implemented 403.853(1), (3), (7), 403.861(16), 

(17), FS. History - New 11-19-87, Formerly 17-22.340, Amended 1-18-89, 1-1-93, 

Formerly 17-550.540, Amended 11-27-01, 10-14-04, 11-28-04. 

 62-550.550 Certified Laboratories and Analytical Methods for Public Water 

Systems. 

 (1) For the purpose of determining compliance with standards and monitoring 

requirements other than those mentioned in subsection (2) below, samples shall be 

considered acceptable only if they have been analyzed by a laboratory certified in 

drinking water by the Department of Health to perform such drinking water analyses 

with the exception that measurements for alkalinity, bromide, calcium, chlorite at 

entrances to distribution systems, orthophosphate, silica, specific ultraviolet 

absorbance, or total organic carbon may be performed by operators licensed under 

Chapter 62-602, F.A.C., or by persons under the direct supervision of a licensed 

operator, and measurements for conductivity, disinfectant residual, pH, temperature, or 
37 

turbidity may be performed by operators licensed under Chapter 62-602, F.A.C., by 

persons under the direct supervision of a licensed operator, or by any authorized 

representative of the Department. Approved analytical methods shall be used and are 

contained in the July 1, 2007, edition of 40 CFR 141.21, 141.23, 141.24, 141.25, 

141.27, 141.74, 141.89, 141.131, and 143.4, and in the Federal Register, Vol. 72, 

Number 47, March 12, 2007, pp. 11199-11249, Vol. 69, No. 30, February 13, 2004, pp. 

7156 – 7161, and Vol. 69, No. 164, August 25, 2004, pp. 52177 – 52182, all of which 

are incorporated herein by reference. Use of an alternative analytical technique 

requires written permission from the Department and the U.S. Environmental Protection 

Agency. The use of DPD colorimetric test kits to measure residual chlorine, chloramine, 

or chlorine dioxide concentration is approved. 

 (2) Measurements for residual disinfectant to demonstrate that TTHM and 

HAA5 samples were taken under normal operating conditions (see subsection 62-

550.821(4), F.A.C.) and measurements for disinfectant residual to determine 

compliance with the operational requirements in subsection 62-555.350(6), F.A.C., may 

be performed by any authorized representative of the supplier of water or the 

Department; but measurements for residual chlorine shall be performed following the 

appropriate procedures in the Department of Environmental Protection Standard 

Operating Procedures for Field Activities, DEP-SOP-001/01, as incorporated into Rule 

62-160.800, F.A.C., and all other measurements shall be performed using an 

appropriate method referenced in subsection (1) above. Measurements for alkalinity, 

dissolved iron, dissolved oxygen, pH, total sulfide, or turbidity to evaluate treatment for 

control of copper pipe corrosion and black water (see subsection 62-555.315(5), F.A.C.) 

may be performed by any authorized representative of the construction permit applicant 

or supplier of water; but measurements for pH and field measurements for dissolved 

oxygen or turbidity shall be performed following the appropriate procedures in the 

Department of Environmental Protection Standard Operating Procedures for Field 

Activities, DEP-SOP-001/01, as incorporated into Rule 62-160.800, F.A.C., and all other 

measurements shall be performed using an appropriate method referenced in 

subsection (1) above or in Standard Methods for the Examination of Water and 

Wastewater as adopted in Rule 62-555.335, F.A.C. Measurements for residual chlorine 

when taking bacteriological survey or evaluation samples (see paragraphs 62-

555.315(6)(b) and (c), F.A.C., and subsection 62-555.340(2), F.A.C.) may be performed 

by any authorized representative of the permittee, supplier of water, or Department, but 

shall be performed following the appropriate procedures in the Department of 

Environmental Protection Standard Operating Procedures for Field Activities, DEPSOP-001/01, as incorporated into Rule 62-160.800, F.A.C. Daily measurements for 

fluoride concentration at water treatment plants fluoridating water (see paragraph 62-

555.325(3)(a), F.A.C.) may be performed by any authorized representative of the 

supplier of water but shall be performed using an appropriate method referenced in 

subsection (1) above. Measurements for disinfectant residual, pH, or temperature to 

determine compliance with the operational requirements under Rule 62-555.350(5), 

F.A.C., may be performed by any authorized representative of the supplier of water or 

Department; but measurements for residual chlorine, temperature, or pH shall be 

performed following the appropriate procedures in the Department of Environmental 

Protection Standard Operating Procedures for Field Activities, DEP-SOP-001/01, as 

incorporated into Rule 62-160.800, F.A.C., and all other measurements shall be 

performed using an appropriate method referenced in subsection (1) above or in 

Standard Methods for the Examination of Water and Wastewater as adopted in Rule 62-

555.335, F.A.C. 
38 

 (3) The Department may take samples and use the results to determine 

compliance with the applicable requirements of this chapter or Chapter 62-555, F.A.C. 

 (4) Compositing of Samples. 

 (a) A public water system may reduce the total number of samples that must 

be analyzed pursuant to Rules 62-550.511, 62-550.512, 62-550.513, 62-550.515, 62-

550.516, and 62-550.519, F.A.C., by the use of compositing. No more than two 

samples shall be combined into one composite sample when analyzing for antimony or 

thallium, which are listed in Table 1, or for any of the volatile organic contaminants listed 

in Table 4, or for ethylene dibromide (EDB), which is listed in Table 5. No more than 

three samples shall be combined into one composite sample when analyzing for 

toxaphene, which is listed in Table 5. No more than four samples shall be combined 

into one composite sample when analyzing for cyanide, which is listed in Table 1. No 

more than five samples shall be combined into one composite sample when analyzing 

for the other contaminants in the other groups. 

 (b) Compositing shall be done only by certified laboratories using the 

approved methods referenced in subsection (1) above. All samples, except those taken 

for radionuclides, shall be analyzed within 14 days of collection. 

 (c) If the population served by the system is greater than 3,300 persons, then 

compositing is only permitted at sampling points within a single system. For systems 

serving 3,300 or fewer persons, compositing among different systems is permitted 

provided the 5 sample limit is maintained. 

 (d) Resampling After a Detection of a Contaminant in a Composite Sample. 

 1. A follow-up sample shall be taken within 14 days from each source and 

sampling point included in the composite. Each of the samples shall be analyzed 

individually for the detected contaminant. 

 2. If duplicates of the original sample for volatile or synthetic organic 

contaminants are available, the system may use these duplicates instead of resampling. 

If a duplicate is used, it shall be analyzed for the detected contaminant within 14 days of 

collection. 

 (e) Compositing of no more than two samples from new wells for the purpose 

of obtaining clearance is allowed. 

Specific Authority 403.853(3), 403.861(9), FS. Law Implemented 403.853(1), (3), 

403.861(16), (17), FS. History -- New 11-19-87, Formerly 17-22.350, Amended 1-18-

89, 5-7-90, 1-3-91, 1-1-93, 1-26-93, Formerly 17-550.550, Amended 9-7-94, 2-7-95, 8-

1-00, 11-27-01, 4-14-03, 11-28-04, 9-18-07. 

 62-550.560 Monitoring Requirements for Surface Water Systems and 

Ground Water Systems Under the Direct Influence of Surface Water. (Repealed) 

Specific Authority 403.853(3), 403.861(9) FS. Law Implemented 403.853(1),(3), 

403.861(16),(17) FS. History -- New 1-3-91, Amended 1-1-93, Formerly 17-550.560, 

Repealed 4-3-03. 

 62-550.590 Public Water System Monitoring Information and Monitoring 

Schedule. 

 (1) Table 7 summarizes the monitoring frequencies and locations that apply to 

public water systems in determining compliance with the rules set forth in this part. 

 (2) Table 8 contains the monitoring schedule for public water systems on 

routine monitoring. Public water systems on increased or reduced monitoring as 

summarized in Table 7 shall refer to subsection 62-550.500(3), F.A.C., to determine 

their monitoring schedule. 
39 

Specific Authority 403.853(3), 403.861(9), FS. Law Implemented 403.853(1), (3), 

403.861(16), (17), FS. History -- 1-18-89, Amended 1-3-91, 1-1-93, Formerly 17-

550.590, Amended 9-7-94, 8-1-00, 11-27-01. 

PART VII 

SURVEILLANCE, RECORDKEEPING, AND REPORTING 

 62-550.700 General. (Repealed) 

Specific Authority 403.861, FS. Law Implemented 403.852, 403.853, 403.855, 

403.858, FS. History -- New 1-18-89, Formerly 17-550.700, Repealed 12-9-96. 

 62-550.710 Surveillance. (Repealed) 

Specific Authority 403.861(9), FS. Law Implemented 403.852(12), 403.853(3), 

403.855, 403.858, FS. History -- New 11-19-87, Formerly 17-22.810, Amended 1-18-

89, Formerly 17-550.710, Repealed 12-9-96. 

 62-550.720 Recordkeeping. 

Suppliers of water shall retain on their premises, or at a convenient location near their 

premises, the following records: 

 (1) Records of bacteriological analyses made under this chapter shall be kept 

for not less than 5 years. Records of physical, chemical, or radiological analyses made 

under any portion of this chapter other than Rule 62-550.800, F.A.C., (including records 

of chemical analyses to determine compliance with maximum residual disinfectant 

levels) shall be kept for not less than 10 years. Actual laboratory reports may be kept, 

or data may be transferred to tabular summaries, provided that the information required 

in Rule 62-550.730, F.A.C., is included. 

 (2) Records of action taken by the system to correct a violation of primary 

drinking water regulations shall be kept for a period not less than 3 years after the last 

action taken with respect to the particular violation involved. 

 (3) Copies of any written reports, summaries, or communications relating to 

cross connection control program or sanitary surveys of the system conducted by the 

system itself, by a private consultant or by any local, State, or Federal agency, shall be 

kept for a period not less than 10 years after completion of the sanitary survey. 

 (4) Records concerning a variance or exemption granted to the system shall 

be kept for a period ending not less than 5 years following the expiration of the variance 

and exemption. 

 (5) Monthly operation reports shall be kept for a period of not less than 10 

years. 

 (6) Any system subject to the requirements of Rule 62-550.800, F.A.C., shall 

retain, for no fewer than 12 years, original records of all sampling data and analyses, 

reports, surveys, letters, evaluations, schedules, Department determinations, and any 

other information required by Rule 62-550.800, F.A.C. 

Specific Authority 403.861(9), FS. Law Implemented 403.861(16), FS. History -- New 

11-19-87, Formerly 17-22.820, Amended 1-18-89, 1-1-93, 7-4-93, Formerly 17-550.720, 

Amended 11-27-01, 11-28-04. 

 62-550.730 Reporting Requirements for Public Water Systems. 

Suppliers of water and DOH-certified laboratories shall report as follows: 

 (1) Suppliers of Water. 
40 

 (a) Except where a shorter reporting period is specified in this chapter, the 

suppliers of water shall report to the appropriate District office of the Department or 

Approved County Health Department the results of the test measurement or analysis 

required by this chapter within the first ten days following the end of the required 

monitoring period as designated by the Department, or the first ten days following the 

month in which the sample results were received, whichever time is shortest. 

 (b) The supplier of water shall use the format described in subparagraphs 1. 

through 9. below for reporting all water analysis results for inorganics, disinfectant 

residuals at microbiological or disinfection byproduct sampling points, disinfection 

byproducts, volatile or synthetic organics, microbiological contaminants, radionuclides, 

or secondary contaminants. Example laboratory reporting formats can be obtained by 

writing to the Department of Environmental Protection, Drinking Water Section, MS 

3520, 2600 Blair Stone Road, Tallahassee, Florida 32399-2400, or by visiting the 

Department’s Internet site at http://www.dep.state.fl.us/water/drinkingwater/forms.htm.

The supplier of water shall completely fill out analysis reports in non-erasable ink, on a 

typewriter, or using a computer generated report and shall include, at a minimum, the 

following information: 

 1. Facility name and PWS I.D. number - The complete, unabbreviated facility 

name is required. The correct, seven digit PWS I.D. number assigned by DEP shall 

also be clearly written. 

 2. Address and county - The water system's legal address (plant location) 

shall be completely filled out along with the name of the county where the water system 

is located. 

 3. Collector's name and title - The collector's name and job title shall be 

included, along with a business phone number. 

 4. Date and time of collection - A complete date (month, day, and year) and 

sampling time (including a.m. or p.m.) shall be included in order to calculate sample 

holding time. The results from samples exceeding the appropriate holding time for the 

contaminant before analysis (for example, thirty hours for bacteriological samples) shall 

be rejected by the Department as not reliable. 

 5. Type of water system. The sample form shall clearly show if the water 

system is a community, transient non-community, or non-transient non-community 

water system. 

 6. Raw or treated - The sample form shall indicate if the samples were 

collected from raw or treated water. If samples from both water types are included on 

the form, they shall be clearly labeled from which type of water each sample was taken. 

 7. Sample type - The sample form shall clearly show if the sample was taken 

for compliance, recheck, main clearance, well survey, inter-agency agreement, or other 

purposes. If "other" is marked, the purpose for taking the sample shall be stated (e.g., 

complaint, quality control, special, etc.). 

 8. Sample location - Samples shall be taken at valid sampling locations as 

described in Rule 62-550.500(5), F.A.C. Legal addresses, or the best descriptions 

possible, shall be given for each sampling point. 

 9. Field analyses for disinfectant residual – The analyzer’s name, as well as the 

analysis result, shall be included for each disinfectant residual analysis at a 

microbiological or disinfection byproduct sampling point. Additionally, the analyzer’s 

qualifications and the analytical method shall be included for each analysis used to 

determine compliance with disinfectant residual standards (i.e., for each disinfectant 

residual analysis at a point where a routine or repeat sample is taken to determine 
41 

whether a community or non-transient non-community water system is in compliance 

with microbiological standards). 

 (c) Analysis results not reported in the format specified in paragraph 62-

550.730(1)(b), F.A.C., or reported on formats that are not completely, clearly, and 

correctly filled out by the supplier of water and the laboratory shall be invalid. The 

Department District Office or Approved County Health Department shall reject invalid 

analytical results and return the reports to the supplier of water within 7 days. The 

supplier of water shall then resubmit the analysis report with the corrected information 

within 5 days. 

 (d) The supplier of water shall submit monthly operation reports as specified 

in subsections 62-555.900(2) through (4), F.A.C., to the appropriate Department of 

Environmental Protection District Office or the appropriate Approved County Health 

Department within 10 days after the month of operation. 

 (e) The supplier of water shall report to the appropriate Department of 

Environmental Protection District Office or appropriate Approved County Health 

Department within 48 hours (unless otherwise specified by the chapter) the failure to 

comply with any drinking water rule contained in Parts III, V, or VIII of this chapter, or 

Part IV of Chapter 62-560, F.A.C. When compliance is achieved, the measures taken 

shall be reported to that office. 

 (f) The supplier of water is not required to report analytical results to the 

Department in cases where a Department of Health laboratory performs the analysis 

and reports the results to the Department. 

 (g) Copies of any written reports, summaries, or communications relating to 

sanitary surveys of the system conducted by the system itself, by a private consultant, 

or by any local or Federal agency, shall be submitted to the appropriate Department 

District Office or the appropriate Approved County Health Department within 15 days of 

receipt by the supplier of water of the information. 

 (h) The supplier of water, within ten days of completion of each public 

notification requirement pursuant to Part IV of Chapter 62-560, F.A.C., shall submit to 

the Department a completed DEP Form 62-555.900(22), Certification of Delivery of 

Public Notice, and include with the form a representative copy of each type of notice 

distributed, published, posted, and made available to the persons served by the system 

and the media. 

 (i) Upon request, the supplier of water shall submit to the Department within 

the time stated in the request, copies of any records required to be maintained under 

Rule 62-550.720, F.A.C., or copies of any document which the Department is entitled to 

inspect. 

 (2) Certified Laboratories. 

 (a) A certified laboratory shall report analysis results for inorganics, 

disinfectant residuals at microbiological or disinfection byproduct sampling points, 

disinfection byproducts, volatile or synthetic organics, microbiological contaminants, 

radionuclides, or secondary contaminants to the appropriate Department of 

Environmental Protection District Office or appropriate Approved County Health 

Department in a format that includes all of the information described in subparagraphs 

1. through 7. below. If lab analysis results are not submitted using the specified format, 

the results will be rejected. The information submitted by the certified laboratory shall 

include, at a minimum, the following information: 

 1. Laboratory name - The complete, unabbreviated laboratory name is 

required. If the analytical work was subcontracted out to another certified laboratory, 

the subcontracting laboratory name shall also be included. 
42 

 2. Laboratory certification number - The correct, five digit lab certification 

number, assigned by DOH, shall be clearly identified for the services provided. Any 

subcontracting laboratory certification numbers shall also be identified for the services 

provided. The proper certification number for the services provided shall be included, 

such as when a laboratory that performs radiological analyses has a different 

certification number from a laboratory that performs other analyses, and both 

laboratories have the same owner and address. 

 3. Date and time of the beginning of the analysis - A complete date (month, 

day, and year) and time of the beginning of the analysis (including a.m. or p.m.) shall be 

included in order to calculate sample holding time. Results from samples exceeding the 

appropriate holding time for the contaminant before analysis (for example, thirty hours 

for bacteriological samples) shall not be accepted as reliable and shall be rejected by 

the Department. 

 4. Name, title, and business phone number of the laboratory contact person. 

 5. Detection limits and analytical methods - The analytical method for each 

bacteriological analysis, the analytical method for each disinfectant residual analysis 

used to determine compliance with disinfectant residual standards (i.e., for each 

disinfectant residual analysis at a point where a routine or repeat sample is taken to 

determine whether a community or non-transient non-community water system is in 

compliance with microbiological standards), and the actual detection limit and analytical 

method for each chemical or radiological analysis shall be included. 

 6. Analysis results – For bacteriological analyses, only the presence or 

absence of the contaminant need be reported. For chemical or radiological analyses, 

any value above the detection limit shall be reported as a real number; only reporting 

that a value is below the maximum contaminant level is insufficient. 

 7. Analysis error - The analysis error for each radiological analysis shall be 

included to determine compliance with the standards in this chapter. 

 (b) All certified laboratories shall report the chemical analysis results by using 

the name of the contaminant as given in Part III of this chapter. Different isomers of a 

contaminant shall be reported separately. If a laboratory reports a result for a 

contaminant not listed in Part III of this chapter, the name of the contaminant and its 

isomers shall be given using I.U.P.A.C. (International Union of Pure and Applied 

Chemistry) nomenclature. 

 (c) Analytical results not reported in the format specified in paragraph 62-

550.730(2)(a), F.A.C., or reported on formats that are not completely, clearly, and 

correctly filled out by the certified laboratory as described in (a) and (b), are invalid. The 

Department or Approved County Health Department shall reject all invalid analytical 

results and return the reports to the supplier of water within 7 days of receipt. The 

supplier of water shall then resubmit the analysis reports with the corrected information 

within 5 days. 

 (d) The Department shall not be responsible for any costs incurred when 

requiring a supplier of water to resample for invalid analytical results. 

 (3) Additional Reporting Formats for Disinfectant Residuals, Disinfection 

Byproducts, and Disinfection Byproduct Precursors and Enhanced Coagulation or 

Enhanced Softening. See subsection 62-550.821(12), F.A.C. 

 (4) Reporting Formats for the Control of Lead and Copper. Analytical results 

for samples taken pursuant to this chapter shall be reported in a format that includes all 

of the required information described below. If laboratory analysis reports are submitted 

without all of the required information as set forth below, the submittal will be rejected. 
43 

 (a) Lead and Copper Tap Samples. The information submitted by the certified 

laboratory for the analysis of lead and copper tap samples shall include, at a minimum: 

 1. System name. 

 2. Public water system identification number. 

 3. Laboratory name. The complete unabbreviated laboratory name is 

required. If the analytical work was subcontracted out to another certified laboratory, the 

subcontracting laboratory name shall also be included. 

 4. Laboratory certification number. The correct five digit laboratory 

certification number as assigned by the Department of Health shall be clearly identified 

for the services provided. Any subcontracting laboratory's certification number shall also 

be submitted for the services provided. 

 5. Contact person. Name and title of the laboratory contact person. 

 6. Telephone number. 

 7. Date samples were submitted to the laboratory. 

 8. Analysis date. 

 9. Analytical method used. 

 10. Method detection limit. 

 11. Specify whether the sample is part of the minimum number of samples 

selected under the July 1, 2000, edition of 40 CFR 141.86(c) or is an ADDITIONAL 

sample taken under the July 1, 2000, edition 40 CFR 141.86(e). 

 12. Specify the rank of the sample result for lead or copper and list results in 

ascending order in accordance with the July 1, 2000, edition of 40 CFR 141.80(c)(3)(i). 

 13. Specify the location code of the sample. This number is the same as that 

reported on Form 62-555.900(12). It is a three digit identification number followed by the 

tier number of the site. 

 14. The laboratory sample identification number. 

 15. The date the site was sampled. 

 16. The concentration of lead or copper in milligrams per liter. 

 17. The 90th percentile value of lead or copper. 

 18. The laboratory's authorized representative shall certify that the samples 

were submitted by the listed public water system; each sample container contained one 

liter of solution (±100 mL); each sample was taken and analyzed by the methods in 

subsection 62-550.550(1), F.A.C.; the sample date for each sample was reported; and 

all data submitted are correct. 

 (b) Lead and Copper Source Water Samples. Certified laboratories shall 

report in the format specified in paragraph 62-550.730(2)(a), F.A.C., when reporting the 

results for lead or copper source water samples or lead service line samples. 

 (c) Reporting Format for Water Quality Parameters. The results submitted by 

systems for the analysis of water quality parameters required under the July 1, 2000, 

edition of 40 CFR 141.87 shall be reported in the following format: 

 1. Format Header. 

 a. System name. 

 b. System type. 

 c. Public water system identification number. 

 d. Name of system contact person. 

 e. Contact telephone number. 

 f. Population interval letter value. 

 g. Monitoring period dates. 

 h. Water quality parameter sampling round value which will be either the first 

or second sampling round of the reported sampling period. 
44 

 i. The number of sampling sites required under the July 1, 2000, edition of 

40 CFR 141.87(a)(2). 

 j. The number of sites reported. 

 2. Format Table. 

 a. Each sampling site location identification number corresponding to the 

identification number reported in Part VI of DEP Form 62-555.900(12), F.A.C. 

 b. The sampling date for each reported sample. 

 c. The measured value of the water quality parameters and dosage rates 

required to be analyzed under the July 1, 2000, edition of 40 CFR part 141.87. 

Specific Authority 403.853(3), 403.861(9), FS. Law Implemented 403.852(12), (13), 

403.853(3), 403.861(16), (17), FS. History -- New 11-19-87, Formerly 17-22.830, 

Amended 1-18-89, 1-3-91, 1-1-93, Formerly 17-550.730, Amended 9-7-94, 2-7-95, 12-

9-96, 8-1-00, 11-27-01, 4-3-03, 11-28-04, 1-17-05. 

 62-550.740 Location of Records. (Repealed) 

Specific Authority 403.861(9), (16), (17), FS. Law Implemented 403.101, 403.853(3), 

(4), FS. History -- New 11-19-87, Formerly 17-22.835, Amended 1-18-89, Formerly 

17-550.740, Repealed 12-9-96. 

PART VIII 

FEDERAL REGULATIONS ADOPTED BY REFERENCE 

 62-550.800 Control of Lead and Copper. 

The requirements contained in the July 1, 2000, edition of 40 CFR 141, subpart I 

(sections 80 through 91), are adopted and incorporated herein by reference and are 

enforceable under this rule. 

Specific Authority 403.861(9) FS. Law Implemented 403.853 FS. History--New 12-9-

96, 8-1-00, 11-27-01. 

 62-550.817 Additional Requirements for Subpart H Water Systems. 

The requirements for subpart H systems in this section apply to all subpart H systems 

except where noted in this section and are in addition to the requirements applicable to 

all public water systems found elsewhere in Chapters 62-550, 62-555, and 62-560. 

Subparagraph 62-550.817(1)(b)2., and paragraphs 62-550.817(10)(e) and 62-

550.817(12)(b), F.A.C., apply only to consecutive systems that receive any finished 

water originating from a subpart H system. In addition to the requirements of this 

section, the standards and criteria contained in the regulations adopted in subsections 

62-550.817(1), (2), and (3), F.A.C., are adopted by reference and enforceable under 

these rules. A subpart H system is considered to be in compliance with the 

requirements of this section if it meets all the requirements set forth in this section. A 

subpart H system is considered to be out of compliance with the requirements of this 

section if it does not meet all the requirements set forth in this section. 

 (1) Scope of Requirements. 

 (a) These rules are intended to implement the National Primary Drinking 

Water Regulations related to the disinfection and filtration of surface water and ground 

water under the direct influence of surface water, and the recycle of fluids referenced in 

40 CFR 141.76(a) (2002) by subpart H systems that employ conventional filtration or 

direct filtration treatment. 

1. They adopt filtration and disinfection as best available treatment 

techniques for the removal or inactivation of pathogens in lieu of establishing a 
45 

maximum contaminant level for the following contaminants: Cryptosporidium, Giardia 

lamblia, viruses, heterotrophic plate count (HPC) bacteria, Legionella, and turbidity. 

Subpart H systems shall provide treatment of those part(s) of their source water that are 

surface water or ground water under the direct influence of surface water. Such 

treatment shall comply with the treatment technique requirements found in paragraph 

62-550.817(2)(b), F.A.C., in lieu of maximum contaminant levels for Cryptosporidium, 

Giardia lamblia, viruses, HPC bacteria, Legionella, and turbidity. 

2. Recycle provisions. In addition to the requirements of this chapter, the 

standards and criteria contained in the July 1, 2002, edition of 40 CFR 141.76 are 

adopted by reference and enforceable under this rule. 

 (b) For purposes of the requirements of this section: 

 1. The number of persons served by a wholesale system includes the 

number of persons served by the consecutive systems that receive finished water from 

the wholesale system; and 

 2. Consecutive systems that receive any finished water originating from a 

subpart H system are considered subpart H systems for the purpose of demonstrating 

compliance with the distribution system disinfection residual maintenance requirements 

of 40 CFR 141.72(b)(3)(i), adopted in subsection 62-550.817(2), F.A.C., the monitoring 

requirements of paragraph 62-550.817(10)(e), and the reporting requirements of 

paragraph 62-550.817(12)(b), F.A.C. 

 3. When using Form 62-555.900(2), F.A.C., (the Monthly Operation Report 

or MOR form) to calculate CT and other values, input data and output data must be 

within the ranges provided in the MOR form in order to be valid. 

 4. To determine compliance with the following standards for removal or 

inactivation, actual log-inactivation due to disinfectants shall be rounded to the same 

number of significant figures as the standards: 2.0 log Cryptosporidium, 3.0 log Giardia 

lamblia, and 4.0 log viruses. 

 (2) Filtration and Disinfection. In addition to the requirements of this chapter, 

the standards and criteria contained in the July 1, 2002, edition of 40 CFR 141.13, 

141.22, 141.70(a), (b)(2), (c), (d), (e), 141.71(b)(6), 141.72, 141.72(a), 141.72(b)(1), (2), 

(3)(i), 141.73, 141.74, 141.75 are adopted by reference and enforceable under this rule. 

However, 40 CFR 141.72(b)(3)(ii) is not adopted. 

 (a) The following are clarifications and additions to the regulations adopted in 

subsection 62-550.817(2), F.A.C. 

 1. The method used to determine which ground water systems are under the 

direct influence of surface water (UDI) is described in chapter 2 of the Guidance Manual 

for Compliance With the Filtration and Disinfection Requirements for Public Water 

Systems Using Surface Water Sources, adopted in subsection 62-555.335(1), F.A.C., 

and implemented in subsection 62-550.517(2), F.A.C. 

 2. No later than 18 months after the Department has determined that a 

ground water system is under the influence of surface water as described in subsection 

62-550.517(2), F.A.C., the system shall comply with the filtration requirements of 40 

CFR 141.73. No later than 6 months after the Department determination pursuant to 

subparagraph 1. above, the system shall comply with the interim disinfection treatment 

technique described in a., b., and c. below. “Interim” refers to the period between 

Department determination that the system is UDI and the start of compliance with the 

filtration requirements of 40 CFR 141.73. 

 a. Interim disinfection treatment requirements shall be in accordance with 40 

CFR 141.72(a). 
46 

 b. Interim monitoring requirements shall be in accordance with 40 CFR 

141.74(b). 

 c. Interim reporting requirements shall be in accordance with 40 CFR 

141.75(a). 

 3. Starting no later than the end of the interim period and continuing as long 

as the systems remain subpart H systems, subpart H systems shall provide treatment 

consisting of both disinfection and filtration treatment which complies with the 

requirements of 40 CFR 141.72(b) and 141.73, respectively. 

 (b) Treatment Techniques. 

 1. The treatment technique requirements consist of installing and properly 

operating filtration and disinfection water treatment processes that reliably achieve: 

 a. At least 99.9 percent (3-log) removal or inactivation of Giardia lamblia 

between a point where the raw water is not subject to recontamination by surface water 

runoff and a point downstream, before or at taps providing water for human 

consumption; and 

 b. At least 99.99 percent (4-log) removal or inactivation of viruses between a

point where the raw water is not subject to recontamination by surface water runoff or, 

after December 31, 2005, exposed during treatment to the open atmosphere and a 

point downstream, before or at taps providing water for human consumption. For the 

purposes of subsection 62-550.817(2), aerators and other facilities that are protected 

against contamination from birds, insects, wind borne debris, rainfall, and drainage are 

not considered to be exposing water to the open atmosphere and possible viral 

contamination. 

 2. Log-removal credit through filtration. The Department shall determine if a 

system is well-operated based on monthly operation report records, sanitary survey and 

compliance inspection results, CPE results, and any other relevant information. Welloperated filtration treatment plants are given the following log-removal credit: 

Filtration Type Log-Removal Credit for the Removal of 

 Giardia lamblia Viruses 

Conventional 2.5 2.0 

Direct 2.0 1.0 

Slow Sand 2.0 2.0 

Diatomaceous Earth 2.0 1.0 

 

 3. Systems with significant deficiencies related to the treatment process as 

noted in one or more of the reports listed in subparagraph 62-550.817(2)(b)2., F.A.C., 

shall not receive the log-removal credits shown in subparagraph 62-550.817(2)b.2., 

F.A.C., without Department approval. The Department will notify such systems in 

writing of any Department-assigned log-removal credits which are lower than the credits 

shown in subparagraph 62-550.817(2)(b)2., F.A.C. The Department will assign 

reductions in log-removal credits according to the criteria in the “Compliance Manual for 

Subpart H systems”, June 2004 edition, incorporated herein by reference. 

4. Minimum disinfection log-inactivation effectiveness requirements pursuant 

to 40 CFR 141.72(b)(1). The determination of log-removal/inactivation effectiveness 

achieved, specific to the system operating conditions, shall be made using the methods 

in subsections (6) and (7) below. 
47 

 a. Systems providing conventional filtration treatment in compliance with 

Rule 62-550.817, F.A.C., shall provide sufficient disinfection to achieve a minimum of 

0.5-log Giardia lamblia cyst and 2-log virus inactivation to supplement filtration. 

 b. Systems providing slow sand filtration treatment in compliance with Rule 

62-550.817, F.A.C., shall provide sufficient disinfection to achieve a minimum of a 1-log 

Giardia lamblia cyst and 2-log virus inactivation to supplement filtration. 

 c. Systems providing direct and diatomaceous earth filtration treatment in 

compliance with Rule 62-550.817, F.A.C., shall provide sufficient disinfection to achieve 

a minimum of 1-log Giardia lamblia cyst and 3-log virus inactivation to supplement 

filtration. 

 d. Systems providing reverse osmosis, ultrafiltration, or nanofiltration shall 

provide sufficient disinfection to achieve a minimum of 0.5-log Giardia lamblia cyst and 

2-log virus inactivation to supplement membrane filtration treatment. 

 e. Systems shall be deemed to meet the requirements of subparagraph 62-

550.817(2)(b)4., F.A.C. by 

 (I) Determining CTcalc, 

 (II) Estimating log-inactivation for the CTcalc for Giardia lamblia and viruses, 

and 

 (III) Showing that 95% of the daily measurements taken each month meet or 

exceed the minimum log-inactivation disinfection requirements set forth in 4.a. through 

d. above. Estimates of log-inactivation levels shall be rounded to two significant figures. 

 f. A violation of the requirements set forth in III above is a treatment 

technique violation. 

 g. If, in any daily measurement, log-inactivation levels are insufficient to meet 

the requirements of 4.a. through d. above, the operator shall take immediate steps to 

increase disinfection levels. 

 (3) Enhanced filtration and disinfection requirements.

(a) For subpart H systems serving 10,000 or more people. 

1. In addition to the requirements of this chapter, the requirements contained 

in the Code of Federal Regulations, Title 40, Part 141, Subpart P, Sections 170 and 172 

through 175, revised as of July 1, 2002, are adopted by reference and enforceable 

under this rule. 40 CFR 141.171 is not adopted under this rule. 

 2. Treatment technique requirements further consist of installing and properly 

operating water treatment processes which reliably achieve at least a 99 percent (2-log) 

removal or inactivation of Cryptosporidium between a point where the raw water is not 

subject to recontamination by surface water and a point downstream, before or at taps 

providing water for human consumption. 

 (b) For subpart H systems serving fewer than 10,000 people. In addition to 

the requirements of this chapter, the requirements contained in the Code of Federal 

Regulations, Title 40, Part 141, Subpart T, Sections 141.500 through 501, 503, 510 

through 511, 530, 532 through 536, 540 through 544, 550 through 553, 560 through 

564, and 570 through 571, revised as of July 1, 2004, are adopted by reference and 

enforceable under this rule. 40 CFR 141.502, 520 through 522 and 531, and 40 CFR 

142.16(j)(2)(i) are not adopted under this rule. The requirements adopted in this 

paragraph contained in the Code of Federal Regulations, Title 40, Part 141, Subpart T 

shall be effective starting January 1, 2005, except where otherwise noted. 

 (4) Sanitary Surveys and Other Inspections. 

 (a) Sanitary survey corrective action pursuant to 40 CFR 142.16(b)(1)(ii) and 

(iii). A subpart H public water system must take the necessary steps to address 
48 

deficiencies identified in sanitary survey reports required under 40 CFR 142.16(b)(3), if 

such deficiencies are within the control of the system. 

 (b) Systems shall respond in writing no later than within 45 days after the 

receipt of a written report of: 

 1. A sanitary survey outlining significant deficiencies required under (a) 

above. Systems shall indicate how and on what schedule the system will address 

significant deficiencies noted in the survey, and 

 2. A sanitary survey, CPE evaluation, or an inspection referenced in 

paragraph (c) below indicating how and on what schedule the system will undertake the 

filter backwash recycle modifications noted. 

 (c) A subpart H public water system shall take the necessary steps to correct 

any failure to follow the filter backwash recycling treatment technique requirements of 

40 CFR 141.76(c) identified in (b)2., above. 

 (5) Composite Correction Program. A composite correction program (CCP) 

consists of a comprehensive performance evaluation (CPE) and a comprehensive 

technical assistance (CTA) program. CCPs and CPEs are described in Optimizing 

Water Treatment Plant Performance Using the Composite Correction Program, 1998 

Edition, Environmental Protection Agency, Technical Support Center, Standards and 

Risk Management Division, Office of Ground Water and Drinking Water, Office of 

Water, Cincinnati, Ohio, hereby adopted and incorporated by reference. 

 (a) Pursuant to 40 CFR 142.16(g), subpart H systems that are out of 

compliance with the treatment technique requirements of this section shall conduct a 

CPE within ninety days after the receipt of written notification by the Department that 

such a program is necessary. 

 (b) Who Conducts the CPE. The CPE shall be conducted by the Department 

or a third party familiar with the operation of the plant such as a certified operator or a 

professional engineer. The person or entity conducting the CPE is called the CPE 

Team. The CPE Team must be approved by the Department. The Department will 

approve CPE Teams that have: 

 1. All members with experience participating in the conduct of at least three 

CPEs, and, 

 2. No conflict of interest. 

 (c) System Response to Identified Improvements. A subpart H system must 

respond in writing to the recommendations of the CPE report no later than 45 days after 

receipt of the report, indicating how and on what schedule the system will address 

improvements identified in the CPE. 

 (d) Comprehensive Technical Assistance (CTA) Program. 

 1. Pursuant to 40 CFR 142.16(g)(1) and (j)(1), the Department will, as a part 

of its conduct or review of a CPE, determine if a system is required to participate in a 

Comprehensive Technical Assistance (CTA) Program. This written determination shall 

be based on 

 a. Results of a CPE which indicate the potential for improved performance, 

and 

 b. A finding by the Department that the system is able to receive and 

implement technical assistance provided through the CTA program. 

 2. During the CTA phase of the CPE, the system must identify and 

systematically address factors limiting performance. The CTA is a combination of 

utilizing CPE results as a basis for follow-up, implementing process control prioritysetting techniques, and maintaining long-term involvement to systematically train staff 

and administrators. 
49 

 (e) Corrective Action. A subpart H system must take the necessary steps to 

implement the recommendations of the CPE, required under paragraphs (a), (b), and 

(d) above, if such recommendations are within the control of the system. 

 (6) Determination of log-removal/inactivation effectiveness achieved for 

Giardia lamblia through filtration and disinfection. Pursuant to the requirements of 40 

CFR 141.74(b)(3), the procedures incorporated in Form 62-555.900(2) shall be used to 

calculate the log-inactivation effectiveness achieved through the use of the following 

disinfectants: free chlorine, chlorine dioxide, ozone, and chloramines. 

 (7) Determination of log-removal/inactivation effectiveness achieved for 

viruses through filtration and disinfection. Pursuant to the requirements of 40 CFR 

141.172(b)(5), the procedures incorporated in DEP Form 62-555.900(2), which are 

based on the methods found in the guidance manual adopted as subsection 62-

555.335(1), F.A.C., shall be used to calculate the log-inactivation effectiveness 

achieved for viruses when free chlorine, chlorine dioxide, chloramines or ozone are 

used as a primary disinfectant. The log-inactivation effectiveness of UV light shall be 

evaluated using the methods outlined in (e) below. 

 (a) Free Chlorine. The procedures incorporated in DEP Form 62-555.900(2), 

which are based on Table E-7 of the guidance manual adopted as subsection 62-

555.335(1), F.A.C., shall be used for the calculation of CT99.99 to effect the required loginactivation of viruses when chlorine is used as a disinfectant. At operating levels 

above a pH of 9.0, Table E-7 no longer applies. Systems operating above 9.0 shall 

submit a proposed alternative method in writing to the Department. Department 

approval must be obtained in order to operate under the proposed conditions. The 

Department shall approve methods based on the results of laboratory studies or 

calculations. 

 (b) Chlorine Dioxide. The procedures incorporated in DEP Form 62-

555.900(2), which are based on Table E-9 from the guidance manual adopted as 

subsection 62-555.335(1), F.A.C., shall be used for the calculation of CT99.99 to effect 

the required log inactivation of viruses when chlorine dioxide is used as a disinfectant. 

 (c) Chloramines. 

 1. The procedures incorporated in DEP Form 62-555.900(2), which are 

based on Table E-13 of the guidance manual adopted as subsection 62-555.335(1), 

F.A.C., shall be used for the calculation of CT 99.99 values which are used for the 

calculation of the required log inactivation of viruses when chloramines are used as a 

disinfectant and free chlorine is added prior to ammonia. 

 2. Systems that add ammonia prior to chlorine, or ammonia and chlorine 

concurrently, shall determine viral inactivation using the protocol given in Appendix G-2 

of the guidance manual adopted as subsection 62-555.335(1), F.A.C. 

 (d) Ozone. 

 1. The procedures incorporated in DEP Form 62-555.900(2), which are 

based on Table E-11 in the guidance manual adopted as subsection 62-555.335(1), 

F.A.C., and on Table 3-11 in the guidance manual adopted as subsection 62-

555.335(8), F.A.C., shall be used to estimate CT 99.99 viral log-inactivation values when 

ozone is used as a disinfectant. 

 2. The procedures incorporated in DEP Form 62-555.900(2), which are 

based on Appendix O of the guidance manual adopted as subsection 62-555.335(1), 

F.A.C., shall be used to calculate the time of travel, T10, during tracer studies at the four 

process flows as outlined in subparagraph 62-550.817(8)(a)3., F.A.C. 

 (e) UV Light. Table E-14 in the guidance manual adopted as subsection 62-

555.335(1), F.A.C., shall be used to estimate CT99.99 and viral log-inactivation values. 
50 

Systems proposing to use UV light to meet the disinfection requirements of this rule 

shall also make a written, affirmative demonstration incorporating the results of pilot 

plant studies that show how CT99.99 requirements are met. 

 (8) Demonstrating and evaluating disinfection effectiveness through 

completion of Form 62-555.900(2), F.A.C. 

 (a) Subpart H systems shall demonstrate the effectiveness of their 

disinfection treatment by: 

 1. Determining the disinfectant CT value at their plant under operating 

conditions specified in paragraph 62-550.817(10)(c), F.A.C., and 

 a. The disinfectant contact time, T, shall be measured as a time of travel 

through the disinfection process. 

 b. Systems may calculate T, CTcalc, and log-inactivation effectiveness by 

completing Form 62-555.900(2), using baffling factors for each treatment segment. The 

baffling factors shall be selected from Table C-5 of Appendix C of the guidance manual 

adopted in subsection 62-555.335(1), F.A.C. and shall correspond to the actural baffling 

conditions at the system. The Department shall review the baffling factors selected by 

the system when Form 62-555.900(2) is submitted. The Department shall notify the 

system in writing if, in its review, it determines that the baffling factors are not 

representative of actual conditions at the system. 

 c. The disinfectant concentration shall be measured at the downstream point 

of each treatment segment. 

 d. Systems may also estimate contact time by conducting a tracer study to 

measure time of travel, T10, using the methods in Appendix C of the guidance manual 

adopted as subsection 62-555.335(1), F.A.C. When conducting a tracer study, the time 

of travel shall be measured at a minimum of four process flow rates: 

 (I) Maximum rate, which must be at least 91% of the peak hourly flow, 

 (II) The maximum day flow, 

 (III) The average plant flow rate, and 

 (IV) The minimum plant flow rate. 

 e. T10 may be estimated in a tracer study using other or fewer flow rates if 

the use of such flow rates is justified by the system in an affirmative written showing 

submitted to the Department. 

 f. After December 31, 2005, systems may calculate contact time for virus 

inactivation only through treatment segments that are not exposed to the open 

atmosphere during treatment. For the purpose of this paragraph, facilities that are 

protected from contamination from birds, insects, wind-borne debris, rainfall, and 

drainage are not considered to be exposing water to the open atmosphere and possible 

microbial contamination. 

 2. Estimating log-inactivation effectiveness. Systems shall use the 

procedures in Form 62-555.900(2) and in Appendix C of the guidance manual adopted 

as subsection 62-555.335(1), F.A.C., to calculate the log-inactivation effectiveness of 

their treatment processes to demonstrate the effectiveness of their disinfection 

treatment to meet the requirements of subparagraph 62-550.817(2)(b)3, F.A.C. 

 (b) Systems that propose to treat surface water shall submit CT calculations 

with the design report required by paragraph 62-555.520(4)(a), F.A.C., when applying 

for a construction permit. 

 (c) Systems that use tracer studies to determine the time of travel or baffling 

coefficients shall summarize the results of their evaluations by submitting a written 

Disinfectant Contact Time Compliance Report to the Department. 
51 

 1. This tracer study report shall consist of a completed Florida Department of 

Environmental Protection Disinfectant Contact Time Compliance Report worksheet, 

December 2002 edition, or all the information referenced in that worksheet. The 

worksheet is hereby adopted and incorporated by reference and is available from the 

Department of Environmental Protection, Drinking Water Section, M.S. 3520, 2600 Blair 

Stone Road, Tallahassee, Florida 32399-2400. 

 2. Until a Disinfectant Contact Time Compliance Report prepared under (1) 

above is approved by the Department, the system shall use baffling coefficients 

approved by the Department under sub-subparagraph 62-550.817(8)(a)1.b. when 

completing Form 62-555.900(2). 

 (d) The Department shall evaluate the effectiveness of a system’s disinfection 

and thereby determine if the system is in compliance with this section by: 

 1. Evaluating completed Form 62-555.900(2), Monthly Operation Report for 

Subpart H Systems, 

 2. Evaluating Disinfectant Contact Time Compliance Reports or written 

baffling factor justification, and 

 3. Evaluating the results of sanitary surveys and compliance inspections. 

 (e) Changes to disinfection treatment. 

 1. No disinfection process shall be altered or discontinued unless the subpart 

H system secures written permission from the Department in advance. 

 2. The Department will approve such requests when the system 

demonstrates in writing, including an updated Disinfection Contact Time Compliance 

Report or a completed written baffling factor justification, that the proposed changes will 

not adversely modify the disinfection benchmark currently provided. 

 (f) Benchmarking and Profiling. All subpart H systems treating surface water 

shall collect data to establish a disinfection benchmark and profile and shall maintain 

such data and calculated monthly profile values on Form 62-555.900(2), Monthly 

Operation Report for Subpart H Systems. The disinfection profile and benchmark shall 

be based on profile values calculated from data collected over the initial twelve 

consecutive months after monitoring begins. Pursuant to 40 CFR 141.172(a)(3), the 

Department shall approve another set of data to establish a profile and benchmark 

based on a written showing by the system that the replacement data are more 

representative of existing conditions at the plant. 

 (9) Approving Alternative Filtration Technologies Pursuant to 40 CFR 

142.16(g)(2)(iv) and 142.16(j)(2)(iv) (2002). 

 (a) Subpart H systems proposing to use other filtration technologies shall 

perform pilot plant studies to demonstrate the effectiveness of the proposed treatment 

process to treat water similar to the water source being used. 

 1. Treatment effectiveness shall be demonstrated through the use of turbidity 

measurements, particle count studies, or sampling results showing virus, Giardia 

lamblia, and Cryptosporidium removal efficiencies that demonstrate that the proposed 

filtration technology, in combination with disinfection treatment, reliably and consistently 

achieves the log-removal/inactivation requirements of this Section. 

 2. Based on the results of the pilot plant studies in paragraph 1. above, the 

Department shall set turbidity performance requirements that the system shall meet at 

least 95% of the time, and a Maximum Allowable Limit. 

 3. The system shall conduct monitoring pursuant to 40 CFR 141.172(b) and 

submit the results to the Department. The Department shall establish a disinfection 

profile based on those results. 
52 

 4. The system shall comply with the monitoring and reporting requirements 

of subsections (10) and (11) below. 

 (b) Systems determined per subparagraph 62-550.817(2)(b)2., F.A.C. to be 

well-operated and using membrane filtration treatment technologies including either 

reverse osmosis, nanofiltration, or ultrafiltration are given a 2.0 log-removal credit for 

Cryptosporidium, a 2.0 log-removal credit for viruses, and a 2.5 log-removal credit for 

Giardia lamblia if grab samples taken every four hours or continuous monitoring show 

turbidity levels equal to or less than 0.3 NTU 95% of the time and if all samples are 

equal to or less than 1 NTU. 

 (c) Systems using alternative treatment technologies approved under this 

subsection shall be subject to a reduction in a log-removal credit given by the 

Department pursuant to subparagraph 62-550.817(2)(b)2., F.A.C. 

 (10) Monitoring Requirements. All subpart H systems shall monitor to 

determine compliance with both the filtration and disinfection treatment techniques, in 

lieu of maximum contaminant levels, as specified in 40 CFR 141.74, adopted in 

subsection 62-550.817(2), F.A.C., and 40 CFR 141.174, adopted in subsection 62-

550.817(3), F.A.C. Consecutive subpart H systems that do not provide filtration need 

monitor only to show compliance with (e) below. 

 (a) A public water system may substitute continuous turbidity monitoring in 

lieu of grab sample monitoring specified in 40 CFR 141.74 (b)(2), and 141.74(c)(1), if it 

validates the continuous measurement for accuracy on a regular basis using a protocol 

that includes: 

 1. Initial Department approval of the monitoring equipment before its 

installation. The Department will approve the use of turbidimeters that conform to the 

requirements of the Guidance Manual for Compliance with the Interim Enhanced 

Surface Water Treatment Rule: Turbidity Provisions, Chapter 3, US EPA, April 1999, 

hereby adopted and incorporated by reference, 

 2. Calibration of the equipment using primary standards at a frequency 

recommended by the manufacturer or quarterly, whichever is more frequent, 

 3. Reporting of the calibration results reported on part five of Form 62-

555.900(2), Monthly Operation Report for Subpart H Systems, 

 4. Retention of maintenance and calibration records, on the premises of the 

public water system or at a convenient location near the premises, for a period of not 

less than three years or until the Department completes a Sanitary Survey, and 

 5. Approved monitoring locations for combined turbidity pursuant to 

Paragraph 5.2 of Chapter 5 of the guidance manual adopted as subsection 62-

555.335(1), F.A.C. 

 a. Combined filter effluent prior to entry into a clearwell, 

 b. Clearwell effluent, 

 c. Plant effluent or immediately prior to entry into the distribution system, or 

 d. Flow weighted average of effluent measurements from each filter, or 

 e. Another location approved in writing by the Department, based on an 

affirmative written showing by the system that the proposed alternative location provides 

filtered water turbidity readings that are representative of the water served to system 

customers. 

 (b) Continuous and bench top monitoring equipment for disinfectant residual, 

pH and temperature shall be calibrated not less than quarterly and the results reported 

on part five of Form 62-555.900(2), Monthly Operation Report for Subpart H Systems. 
53 

 (c) In addition to the monitoring requirements of 40 CFR 141.74, subpart H 

systems that treat surface water shall daily monitor the following parameters at the 

downstream end of each treatment segment during peak hourly flow. 

 1. The temperature of the disinfected water in degrees Celsius, 

 2. If the system uses chlorine, chlorine dioxide, or chloramines, the pH of the 

disinfected water, 

 3. The disinfectant concentration, “C”, in mg/L, prior to each additional point 

of disinfection and before or at the first customer, and 

 4. The used storage volume in a segment, in cubic feet. 

 (d) If at any time the residual disinfectant concentration at the point of entry to 

the distribution system falls below 0.2 milligrams per liter free chlorine or its equivalent 

in a system using grab sampling in lieu of continuous monitoring, the system shall 

immediately begin taking grab samples every four hours until the residual disinfectant 

concentration is equal to or greater than 0.2 milligrams per liter free chlorine or its 

equivalent. 

 (e) Consecutive subpart H systems that do not provide filtration shall monitor 

disinfectant residual levels in compliance with 40 CFR 141.74(c)(3)(i), adopted in 62-

550.817(2), F.A.C. 

 (11) Process Monitoring Requirements. Subpart H systems that provide 

conventional filtration shall monitor: 

 (a) Raw water turbidity daily, prior to any treatment, and 

 (b) Settled water turbidity every two hours at the outlet of each operating 

sedimentation basin. 

 (12) Reporting Requirements. 

 (a) Subpart H systems shall complete and submit to the appropriate 

Department District Office or appropriate Approved County Health Department Form 62-

555.900(2), Monthly Operation Report for Subpart H Systems, within ten days after the 

end of each month. For instructions on how to complete the form and other information 

on subpart H system operation, refer to the DEP document “Compliance Manual for 

Subpart H Systems,” June 2004 edition. 

 (b) Consecutive systems that receive purchased finished water originating 

from a subpart H system shall report the disinfectant residual data specified on page 

one of Monthly Operation Report for Consecutive Systems that Receive Purchased 

Finished Water from a Subpart H System (formerly adopted and incorporated as rule 

62-555.900(6)), hereby adopted and incorporated by reference into this rule. Systems 

shall submit this completed form to the appropriate Department District Office or 

appropriate Approved County Health Department within ten days after the end of each 

month. 

 (c) In addition to the reporting requirements of 40 CFR 141.75 and 40 CFR 

141.175, subpart H systems that treat surface water shall report using DEP Form 62-

555.900(2). 

1. The measurements required by paragraph 62-550.817(10)(c), F.A.C., and 

2. The daily total inactivation for viruses and Giardia lamblia estimated from 

these measurements and the monthly disinfection profile values. 

 (d) Subpart H systems shall also report: 

 1. The disinfectant residual monitoring data required under 40 CFR 141.75 

included in part three of Form 62-555.900(2), Monthly Operation Report for Subpart H 

Systems. 

 2. The process monitoring for raw water and settled water turbidity required 

under paragraphs 62-550.817(11)(a) and (b), F.A.C. Report each daily raw water 
54 

turbidity and the maximum settled water turbidity during each 4-hour period on Form 62-

555.900(2). 

 3. For systems serving 10,000 or more persons, the filter profile required 

under 40 CFR 141.175(b)(1) through (3) unless the reason for a turbidity exceedance is 

one of the following: 

 a. Treatment process outages, 

 b. Maintenance activities at processes within the treatment train, 

 c. Coagulation feed pump or equipment failure, or 

 d. The filters were run at higher loading rates than approved by the 

Department. 

 (e) Subpart H systems that employ conventional filtration or direct filtration 

treatment and that recycle spent filter backwash water, thickener supernatant, or liquids 

from dewatering processes shall report to the Department: 

 1. The filter backwash recycle information required under 40 CFR 141.76(b) 

using a completed Florida Department of Environmental Protection Filter Backwash 

Recycling Notification Worksheet, December 2003 edition, or all the information 

referenced on this worksheet. The worksheet is hereby adopted and incorporated by 

reference and is available from the Department of Environmental Protection, Drinking 

Water Section, M.S. 3520, 2600 Blair Stone Road, Tallahassee, Florida 32399-2400. 

This worksheet, or all the information referenced on this worksheet, shall be submitted 

to the Department by December 8, 2003, and revised and resubmitted whenever 

recycle flow handling changes are completed. 

 2. The recycle flow information specified in 40 CFR 141.76(d)(1) through (6) 

using a completed Florida Department of Environmental Protection Filter Backwash 

Recycling Recordkeeping Worksheet, December 2003 edition, or all the information 

referenced on this worksheet. The worksheet is hereby adopted and incorporated by 

reference and is available from the Department of Environmental Protection, Drinking 

Water Section, M.S. 3520, 2600 Blair Stone Road, Tallahassee, Florida 32399-2400. 

This worksheet, or all the information referenced on this worksheet, shall be submitted 

to the Department initially by June 8, 2004, and updated annually thereafter by January 

10. 

 (13) Public notification of Long Term 1 Surface Water Treatment requirements. 

In addition to the requirements of Chapter 62-560, F.A.C., the public notification 

requirements contained in the revisions to Table 1 to 40 CFR 141.202, 40 CFR 

141.203, Appendix A to 40 CFR 141 Subpart Q, and Appendix B to 40 CFR 141 

Subpart Q on pages 1836-1838 of the January 14, 2002, Federal Register are adopted 

by reference and enforceable under this rule. 

 (14) Recordkeeping requirements. In addition to the requirements of 40 CFR 

141.175 and .571, systems must maintain System Control and Data Acquisition 

(SCADA) data in electronic form so that it is available to a Department inspector for 3 

years. Individual filter turbidity vs. time must be readily available to the Department in 

ascii format extending back at least 36 months. Turbidity must represent at least peak 

turbidity during a 15-minute interval as per 40 CFR 141.173. 

Specific Authority 403.861(9) FS. Law Implemented 403.852(12), 403.853(1),(3) FS. 

History - New 4-3-03, Amended 5-28-03, 11-25-03, 10-14-04, 1-17-05. 

 62-550.821 Disinfectant Residuals, Disinfection Byproducts, and 

Disinfection Byproduct Precursors. 

The requirements contained in the July 1, 2003, edition of 40 CFR 141, subpart L 

(sections 141.130 through 141.135), and the revisions to 40 CFR 141, subpart L, 
55 

published on pages 3770 through 3780 of the January 16, 2001, Federal Register are 

adopted and incorporated herein by reference and are enforceable under this rule. The 

following are clarifications and additions to the requirements in 40 CFR 141, subpart L. 

 (1) In 40 CFR 141, subpart L, the term “State” shall mean “Department.” 

Also, references to section 141.2 shall be interpreted to mean Rule 62-550.200, F.A.C.; 

references to section 141.21 shall be interpreted to mean Rule 62-550.518, F.A.C.; 

references to section 141.23(k)(1) or 141.89(a) shall be interpreted to mean subsection 

62-550.550(1), F.A.C.; references to section 141.31 shall be interpreted to mean 

subsection 62-550.730(1), F.A.C.; references to section 141.32 or 141.202 shall be 

interpreted to mean Rule 62-560.410, F.A.C.; references to section 141.32(e)(78) shall 

be interpreted to mean subsection 62-560.410(6), F.A.C.; references to section 141.64 

or 141.64(a) shall be interpreted to mean paragraph 62-550.310(3)(b), F.A.C.; 

references to section 141.65 shall be interpreted to mean subsection 62-550.310(2), 

F.A.C.; references to section 141.74(b)(6)(i) shall be interpreted to mean subsection 62-

550.560(2), F.A.C.; references to section 141.74(c)(3)(i) shall be interpreted to mean 

paragraph 62-550.560(3)(d), F.A.C.; references to subpart Q shall be interpreted to 

mean Part IV of Chapter 62-560, F.A.C.; and references to section 142.16(h)(5) shall be 

interpreted to mean subsection 62-550.821(9), F.A.C. 

 (2) For purposes of the compliance dates in 40 CFR 141.130(b) and the 

disinfection byproduct and residual disinfectant monitoring requirements in 40 CFR 

141.132(b), (c), and (f): 

 (a) The number of persons served by a wholesale system includes the 

number of persons served by the consecutive systems that receive finished water from 

the wholesale system; and 

 (b) Consecutive systems that receive any finished water originating from a 

subpart H system are considered subpart H systems. 

(3) 40 CFR 141.130(c) shall be interpreted to mean that suppliers of water 

who own or operate a CWS or NTNCWS, including either a consecutive CWS or a 

consecutive NTNCWS, must employ operators licensed under Chapter 62-602, F.A.C., 

to operate the system and staff the system’s water treatment plant(s), if any, in 

accordance with Chapter 62-699, F.A.C. 

 (4) Under 40 CFR 141.132(a), systems shall demonstrate that TTHM and 

HAA5 samples were taken under normal operating conditions by measuring, and 

reporting with the results of samples for TTHM and HAA5, the residual disinfectant level 

at the same points where, and same times when, TTHM and HAA5 samples are taken. 

These measurements may be performed by any authorized representative of the 

supplier of water or Department; but measurements for residual chlorine shall be 

performed following the appropriate procedures in the Department of Environmental 

Protection Standard Operating Procedures for Field Activities, DEP-SOP-001/01, as 

incorporated into Rule 62-160.800, F.A.C., and all other measurements shall be 

performed using an appropriate method referenced in subsection 62-550.550(1), F.A.C.

These measurements shall not be used for determining compliance with the MRDL. 

 (5) For purposes of the TTHM and HAA5 monitoring requirements in 40 CFR 

141.132(b)(1), each entry point from a wholesale system to a consecutive system is 

considered a plant for the consecutive system. 

 (a) Consecutive systems may request that the Department allow for multiple 

entry points from a single wholesale system to a single consecutive system to be 

considered as one plant. 

 (b) The Department shall approve requests made in accordance with 

paragraph (a) above if the consecutive system submits documentation showing that 
56 

factors such as relative locations of entry points, detention times, sources, and the 

presence of treatment (such as corrosion control or booster disinfection) will not have a 

significant differential effect on TTHM and HAA5 formation associated with individual 

entry points. 

 (6) 40 CFR 141.132(b)(1)(v) shall be interpreted to mean that, in addition to 

allowing systems on increased monitoring to return to routine monitoring under 40 CFR 

141.132(b)(1)(iv), the Department shall allow systems on increased monitoring to return 

to routine monitoring if their TTHM quarterly averages and HAA5 quarterly averages are 

less than or equal to the MCL for four consecutive quarters. 

(7) Under 40 CFR 141.131(c)(2), the use of DPD colorimetric test kits to 

measure residual chlorine, chloramines, or chlorine dioxide is approved per subsection 

62-550.550(1), F.A.C. 

 (8) Under 40 CFR 141.131(b)(3), (c)(3), and (d), operators licensed under 

Chapter 62-602, F.A.C., and persons under the direct supervision of a licensed 

operator, as well as laboratories certified by the Department of Health, are approved to 

measure alkalinity, bromide, chlorite (only at entrances to distribution systems), pH, 

residual disinfectant concentration, specific ultraviolet absorbance, and total organic 

carbon. Refer to subsection 62-550.550(1), F.A.C. 

 (9) Under 40 CFR 141.132(a)(2), the Department shall approve reduced 

TTHM and HAA5 monitoring by allowing systems to consider multiple plants treating 

water from multiple wells completed in the same aquifer as one treatment plant if: 

 (a) The plants are applying the same disinfectant(s); and 

 (b) The system submits a hydrogeological evaluation that is prepared under 

the supervision of a professional geologist or engineer registered in Florida and that 

indicates the wells are completed in, and drawing water from, the same aquifer and 

indicates the characteristics (including the total organic carbon level and, if ozone is 

being used to treat the water, bromide level) of the water from each well are enough 

alike to conclude disinfection byproduct formation will be similar. 

(10) Under 40 CFR 141.132(f), all subpart H systems shall submit a copy of 

their monitoring plan to the appropriate Department of Environmental Protection District 

Office or appropriate Approved County Health Department no later than the date of the 

first report required under 40 CFR 141.134. All other systems shall make their 

monitoring plan available for review during sanitary surveys conducted by the 

Department and shall submit their monitoring plan if requested by the Department. 

 (11) The monitoring plans required under 40 CFR 141.132(f) shall be prepared 

in a format containing all the following information: 

 (a) A cover page identifying the system and providing relevant general 

information, including: 

 1. The system name and PWS identification number; 

 2. A contact person and phone number; 

 3. The system type (community, non-transient non-community, or transient 

non-community system); 

 4. The number and type of water sources and water treatment plants; and 

 5. The population served by the system when including the population 

served by any consecutive systems that receive water from the system. 

 (b) For subpart H systems using conventional filtration treatment, a summary 

of the system’s enhanced coagulation or softening performance requirements. If 

applicable, a copy of the most recent Department approval of Step 2 TOC removal 

requirements shall be attached to the monitoring plan. 

 (c) A summary of the residual disinfectant, disinfection byproduct, and 
57 

disinfection byproduct precursor monitoring that is required of the system. If applicable, 

a copy of the following Department approvals shall be attached to the monitoring plan: 

 1. Department approval allowing the system to consider multiple plants 

treating water from multiple wells completed in the same aquifer as one treatment plant; 

 2. If the system is a consecutive system, Department approval allowing the 

system to consider multiple entry points from a single wholesale system as one plant. 

 (d) For subpart H systems using conventional filtration treatment, a schematic 

drawing of each of the system’s plants that use conventional treatment to treat surface 

water or ground water under the direct influence of surface water. Each schematic 

drawing shall show: 

 1. The water source(s); 

 2. Each unit process of each treatment train and each chemical application 

point; and 

 3. Sampling locations identified and numbered (e.g., T-1, T-2, etc.). 

 (e) A schematic drawing of the system’s distribution system. The schematic 

drawing shall show: 

 1. Entry points to the distribution system (i.e., water treatment plants and, if 

the system is a consecutive system, entry points from wholesale systems); 

 2. Finished water storage facilities and booster chlorination facilities; and 

 3. Sampling locations identified and numbered (e.g., D-1, D-2, etc.). 

 (f) A summary of typical distribution system operating characteristics 

explaining, on a seasonal basis if necessary, how water sources are used and water 

treatment plants are operated to meet demands on the system and where average and 

maximum water residence times are expected to occur in the distribution system. 

 (g) Schedules for collecting all required samples. The schedules shall identify 

sampling times, sampling locations, sample handling and preservation requirements, 

and whether samples will be analyzed on site by either a licensed operator or a person 

under the direct supervision of a licensed operator or will be analyzed at a certified 

laboratory. Also, the schedules shall address both routine and reduced monitoring 

frequencies. 

 (h) The method for calculating compliance with applicable maximum residual 

disinfectant levels, maximum contaminant levels, and treatment technique 

requirements. 

 (12) This subsection replaces 40 CFR 141.134 and discusses reporting 

requirements for disinfectant residuals, disinfection byproducts, and disinfection 

byproduct precursors. 

(a) Systems and laboratories shall report results of required measurements 

for chlorine or chloramines, and results of required disinfection byproduct analyses 

conducted by certified laboratories, in accordance with subsections 62-550.730(1) and 

(2), F.A.C. In addition, systems described in paragraphs (b) through (d) below shall 

report the summary information described in paragraphs (b) through (d). (For other 

systems, the Department will perform calculations and determine whether MRDLs or 

MCLs were exceeded.) Systems required to report under paragraphs (b) through (d) 

below shall report to the appropriate Department of Environmental Protection District 

Office or Approved County Health Department within ten days after the end of each 

quarter in which samples were collected. 

 (b) Systems serving more than 4,900 persons, and systems using chlorine 

dioxide, shall report a summary of results of measurements for disinfectant residuals in 

a format including all of the following information: 

 1. The system name and PWS identification number. 
58 

 2. A contact person and phone number. 

 3. The information listed in 40 CFR 141.134(c) except that: 

 a. Systems monitoring for chlorine or chloramines also shall include the 

location, date, and result of each sample taken during the last quarter. 

 b. In addition to including the date, result, and location of each sample taken 

during the last quarter, systems monitoring for chlorine dioxide shall include the name of 

the person who collected each sample, the date of analysis of each sample, the name 

and certification number of the laboratory that analyzed each sample or the name and 

license number of the operator responsible for analysis of each sample, and the 

analytical method used for each sample and shall identify each sample as to whether it 

is an entry point sample or a distribution system sample. 

 (c) Subpart H systems serving 500 or more persons, systems using only 

ground water not under the direct influence of surface water and serving 10,000 or more 

persons, and systems using chlorine dioxide shall report a summary of results of 

analyses for disinfection byproducts in a format including all of the following information: 

 1. The system name and PWS identification number. 

 2. A contact person and phone number. 

 3. The information listed in 40 CFR 141.134(b) except that: 

 a. In addition to including the location, date, and result of each sample taken 

during the last monitoring period, systems monitoring for TTHM and HAA5, chlorite, or 

bromate shall include the name of the person who collected each sample, the date of 

analysis of each sample, the name and certification number of the laboratory that 

analyzed each sample, and the analytical method used for each sample. 

 b. Systems monitoring for TTHM and HAA5 also shall identify each sample 

as to whether it was taken at a location representing maximum residence time in the 

distribution system or at a location representing average residence time in the 

distribution system and shall report the residual chlorine or chloramine level measured 

at the same point where, and same time when, each sample was taken. 

 c. Systems monitoring for chlorite also shall identify each sample as to 

whether it is an entry point sample or a distribution system sample. 

 (d) Subpart H systems using conventional filtration treatment shall report a 

summary of results of measurements analyses for disinfection byproduct precursors 

and enhanced coagulation or softening shall be submitted in a format including all of the 

following information: 

 1. The system name and PWS identification number and the water treatment 

plant name. 

 2. A contact person and phone number. 

 3. The information listed in 40 CFR 141.134(d) except that: 

 a. In addition to including the location, date, and results of each paired TOC 

and source-water alkalinity sample taken during the last quarter, systems monitoring for 

TOC shall include the name of the person who collected each sample, the date of 

analysis of each sample, the name and certification number of the laboratory that 

analyzed each sample or the name and license number of the operator responsible for 

analysis of each sample, and the analytical method used for each sample. 

 b. Calculations for determining compliance with Step 1 or 2 TOC removal 

requirements shall be presented in a table similar to Tables 4-3 through 4-6 in the U.S. 

Environmental Protection Agency’s (USEPA’s) Enhanced Coagulation and Enhanced 

Precipitative Softening Guidance Manual, which is incorporated herein by reference and 

is available from the USEPA, Office of Ground Water and Drinking Water (4601), Ariel 

Rios Building, 1200 Pennsylvania Avenue Northwest, Washington, DC 20460-0003. 
59 

 c. Systems monitoring for SUVA, treated-water alkalinity, or magnesium 

hardness removal shall include the location, date, and result of each sample that was 

taken during the last quarter plus the name of the person who collected each sample, 

the date of analysis of each sample, the name and certification number of the laboratory 

that analyzed each sample or the name and license number of the operator responsible 

for analysis of each sample, and the analytical method used for each sample. 

 (13) Under 40 CFR 141.135(b), systems practicing enhanced softening are not 

required to apply to the Department for Step 2 TOC removal requirements. Enhanced 

softening systems that are unable to meet the alternative compliance criteria in 

141.135(a)(2) and (3) and that are unable to meet the Step 1 TOC removal 

requirements may apply to the Department for a waiver of enhanced softening 

requirements. 

 (a) Applicants for a waiver shall submit to the appropriate Department of 

Environmental Protection District Office or appropriate Approved County Health 

Department results of bench- or pilot-scale testing conducted in accordance with 

Section 3.3 of the U.S. Environmental Protection Agency’s Enhanced Coagulation and 

Enhanced Precipitative Softening Guidance Manual, which is incorporated herein by 

reference and is available from the source indicated in sub-subparagraph 62-

550.821(12)(c)3.b, F.A.C. 

 (b) The Department shall grant waivers if the test results required by 

paragraph (a) above show that the applicant is unable to meet the alternative 

compliance criteria in 40 CFR 141.135(a)(2) and (3) and is unable to meet the Step 1 

TOC removal requirements. 

(14) This subsection supplements 40 CFR 141.135(b)(3). The Department 

shall approve Step 2 TOC removal requirements submitted by a system if the system’s 

application includes the information discussed in 40 CFR 141.135(b)(4) and subsection 

(15) below and if all alternative TOC removal percentages are determined in 

accordance with 40 CFR 141.135(b)(4) and Section 3.2 of the U.S. Environmental 

Protection Agency’s Enhanced Coagulation and Enhanced Precipitative Softening 

Guidance Manual, which is incorporated herein by reference and is available from the 

source indicated in sub-subparagraph 62-550.821(12)(c)3.b., F.A.C. 

 (15) This subsection supplements 40 CFR 141.135(b)(4). Applications made to 

the Department for approval of Step 2 TOC removal requirements shall include a table 

of Step 2 removal requirements that is similar in format to the table of Step 1 TOC 

removal requirements in 40 CFR 141.135(b)(2). The Step 2 table shall address the 

same source-water TOC/alkalinity ranges as addressed in the Step 1 table. Also, in 

each source-water TOC/alkalinity range, the required Step 2 TOC removal percentage 

shall remain the same as the Step 1 TOC removal percentage unless the application 

includes test results as described in 40 CFR 141.135(b)(4) supporting an alternative 

TOC removal percentage for that specific TOC/alkalinity range. 

 (16) 40 CFR 141.135(b)(4)(v) is supplemented by the following: 

 (a) Systems applying for a waiver of enhanced coagulation requirements shall 

submit to the appropriate Department of Environmental Protection District Office or 

appropriate Approved County Health Department results of bench- or pilot-scale testing 

conducted in accordance with 40 CFR 141.135(b)(4) and Section 3.2 of the U.S. 

Environmental Protection Agency’s Enhanced Coagulation and Enhanced Precipitative 

Softening Guidance Manual, which is incorporated herein by reference and is available 

from the source indicated in sub-subparagraph 62-550.821(12)(c)3.b., F.A.C. 

 (b) The Department shall grant waivers of enhanced coagulation 

requirements if the test results required by paragraph (a) above show that the TOC 
60 

removal from the applicant system’s water is consistently less than 0.3 mg/L of TOC per 

10 mg/L of incremental alum dose (as aluminum) at all dosages of alum (or equivalent 

addition or iron coagulant). 

 (17) In the event of an acute violation of the maximum residual disinfectant 

level for chlorine dioxide, the supplier of water shall notify the public and the Department 

in accordance with Rule 62-560.410, F.A.C., as soon as practicable but no later than 24 

hours after learning of the violation. 

Specific Authority 403.861(9), FS. Law Implemented 403.0877, 403.852(12), 

403.853(1), (3), (7), 403.861(16), (17), FS. History--New 11-27-01, Amended 11-28-04, 

1-17-05. 

62-550.824 Consumer Confidence Reports. 

These rules are intended to implement the Primary and Secondary Drinking Water 

Regulations that require community water systems to prepare and provide to their 

customers annual consumer confidence reports (CCRs) on the quality of the water 

delivered by the systems. In addition to the requirements of this rule, the requirements 

contained in the following regulations are adopted and incorporated herein by reference 

and are enforceable under this rule: the July 1, 2002, edition of 40 CFR 141, Subpart O, 

sections 151 through 155, and Appendix A to 40 CFR 141, Subpart O; revisions to 

Subpart O on pages 70855 through 70857 of the November 27, 2002, Federal Register; 

and revisions to Subpart O on pages 73011-74047 of the December 9, 2002, Federal 

Register. Additional information may be obtained from the USEPA’s guidance manuals 

Preparing Your Drinking Water Consumer Confidence Report – Revised Guidance for 

Water Suppliers, EPA 816-R-01-003, January 2001, and Revised State Implementation 

Guidance for the Consumer Confidence Report (CCR) Rule, Appendix F, EPA 816-R01-002, January 2001, which are incorporated herein by reference. 

 (1) Additional Report Content Requirements. In addition to the requirements 

of 40 CFR 141.153, the following requirements shall apply: 

 (a) Additional Source Water Information. If the Department has determined 

that a system or well is under the direct influence of surface water, the system shall 

identify the well and proposed remedial action. 

 (b) Water Treatment Information. Systems shall include a general description 

of all major water treatment processes. For example, a statement may be worded in the 

following way: Our water is obtained from ground water sources and is chlorinated for 

disinfection purposes, and then fluoridated for dental health purposes. 

 (c) Additional Primary Contaminant Information. 

 1. In addition to the contaminants referenced in 40 CFR 141.153(d)(1)(i), the 

following contaminants shall be subject to the requirements of §141.153(d): nickel, lead 

(point of entry) and sodium. The applicable results for these three contaminants shall be 

only the results of monitoring to demonstrate compliance with a maximum contaminant 

level (MCL) in subsection 62-550.310(1), F.A.C. 

 2. More Stringent MCLs. For the following contaminants, the Florida MCL is 

more stringent than the federal MCL referenced in 40 CFR 141, Subpart O, Consumer 

Confidence Reports: benzene, vinyl chloride, ethylene dibromide, carbon tetrachloride, 

1,2-dichloroethane, trichloroethylene, and tetrachloroethylene. For these contaminants, 

the Florida MCLs listed in Rules 62-550.310 and 62-550.320, F.A.C., shall apply for the 

purpose of preparing the consumer confidence report. 

 3. Different Monitoring Location Requirements. Subsection 62-550.500(5), 

F.A.C., requires monitoring at the entry point to the distribution system rather than at 

points within the distribution system, when monitoring for compliance with the MCLs for 
61 

the radiological contaminants listed in subsection 62-550.310(6), F.A.C. These results 

shall be applicable to the consumer confidence reports requirements of 40 CFR 

141.153(d)(1)(i). 

 4. Primary Contaminant Source of Contamination Language. In addition to 

the language found in 40 CFR 141, Appendix A to Subpart O, the following language 

shall be used in tables of analytical results to report on the source of contamination for 

lead (point of entry), nickel and sodium. Systems may substitute other language or add 

their own language if the language they use as source of contamination language is 

more specific to conditions affecting their system. 

 a. Lead (point of entry): Residue from man-made pollution such as auto 

emissions and paint. Lead pipe, casing, and solder. 

 b. Nickel: Pollution from mining and refining operations. Natural occurrence 

in soil. 

 c. Sodium: Salt water intrusion, leaching from soil. 

 5. Health Effects Language in Addition to that found in 40 CFR 141, 

Appendix C to Subpart O. The following health effects language shall be used for nickel, 

sodium, and lead (point of entry) when their MCLs have been exceeded: 

 a. Nickel: - Nickel has been shown to damage the heart and liver in 

laboratory animals when the animals are exposed to high levels over their lifetimes. 

The Florida Department of Environmental Protection (DEP) has set the drinking water 

standard for nickel at 100 parts per billion (ppb) to protect against the risk of these 

adverse effects. 

 b. Sodium: The Florida Department of Environmental Protection (DEP) has 

set the drinking water standard for sodium at 160 parts per million (ppm) to protect 

individuals that are susceptible to sodium-sensitive hypertension or diseases that cause 

difficulty in regulating body fluid volume. Sodium is monitored so that individuals who 

have been placed on sodium (salt) restricted diets may take into account the sodium in 

their drinking water. Drinking water contributes only a small faction (less that 10 

percent) to the overall sodium intake. Sodium levels in drinking water can be increased 

by ion-exchange softeners at water treatment facilities or certain point-of-use treatment 

devices. If you have been placed on a sodium restricted diet, please inform your 

physician that our water contains <<insert sodim concentration>> ppm of sodium. 

 c. Lead (point of entry): Infants and children who drink water containing lead 

in excess of the MCL could experience delays in their physical or mental development. 

Children could show slight deficits in attention span and learning abilities. Adults who 

drink this water over many years could develop kidney problems or high blood pressure. 

 6. Reporting total coliform results. When reporting the total monthly number 

of samples include repeat samples. 

 7. Reporting fecal coliform results. If fecal coliform is detected, the table of 

analytical results shall include the total number of positive samples for the year. 

 8. Reporting nitrates and nitrites results. Analytical results for nitrates and 

nitrites shall be reported individually. The reporting of analytical results of total nitrates 

and nitrites is not required. 

 (d) Secondary Contaminant Information. 

 1. The reporting requirements of 40 CFR 141.153(d) shall be applicable to 

the secondary contaminants listed in Rule 62-550.320, F.A.C. 

 2. Reporting of secondary contaminants results. 

 a. Results subject to CCR reporting for secondary contaminants shall be the 

most recent year’s worth of results obtained during or before the calendar year previous 

to the year the CCR is due, except that data older than five years need not be included. 
62 

Results shall be included in the table of secondary contaminants analytical results only if 

the highest single sample result exceeds the MCL. On the table of secondary 

contaminants analytical results, the highest result shall be reported as the level 

detected, and the range of results shall be reported as the range. 

 b. Results for pH need not be reported. 

 c. Results for ethylbenzene(odor), toluene(odor), and xylenes (odor), need 

not be reported, because they are also monitored as primary contaminants. 

 3. Source of Secondary Contaminants. The following language is provided 

for use in tables of results to describe the major sources in drinking water for the 

secondary contaminants listed as follows. Systems may substitute other language or 

add their own language if the language they use as source of contamination language in 

the consumer confidence report is more specific to conditions affecting their system. 

 a. Color and odor: Naturally occurring organics. 

 b. Copper: Corrosion byproduct and natural occurrence from soil leaching. 

 c. Foaming agents: Pollution from soaps and detergents. 

 d. Flouride: Erosion of natural deposits; Water additive which promotes 

strong teeth; Discharge from fertilizer and aluminum factories. 

 e. All other secondary contaminants: Natural occurrence from soil leaching. 

 (e) Unregulated Contaminants. Systems required to monitor for unregulated 

contaminants by 40 CFR 141.40 shall report analytical results when there are 

detections of unregulated contaminants. If unregulated contaminants are detected the 

CCR shall include the following informational statement: <<Insert name of system>> 

has been monitoring for unregulated contaminants (UCs) as part of a study to help the 

U.S. Environmental Protection Agency (EPA) determine the occurrence in drinking 

water of UCs and whether or not these contaminants need to be regulated. At present, 

no health standards (for example, maximum contaminant levels) have been established 

for UCs. However, we are required to publish the analytical results of our UC 

monitoring in our annual water quality report. If you would like more information on the 

EPA’s Unregulated Contaminants Monitoring Rule, please call the Safe Drinking Water 

Hotline at (800) 426-4791. 

 (f) Information Collection Rule (ICR) Contaminants. The federal CCR 

regulations (40 CFR 141.153) state that finished water results for the following are 

subject to consumer confidence reporting requirements: disinfection by-products or 

microbial contaminants for which monitoring is required under 40 CFR 141.142 and 

141.143 except Cryptosporidium. 

 1. Systems monitoring for ICR contaminants shall report the following ICR 

contaminants in their consumer confidence reports, if found in the finished water: 

 a. THM4: trihalomethanes (chloroform, bromodichloromethane, 

dibromochloromethane, and bromoform) - report as a group, 

 b. HAA5: haloacetic acids (mono-, di-, and trichloroacetic acid, and monoand di-bromoacetic acid) – report as a group, 

 c. HAN: haloacetilenitriles (dichloro-, trichloro-, bromochloro-, and 

dibromoacetonitrile) - report as a group, 

 d. HK: haloketones (1,1-dichloropropanone and 1,1,1-trichloropropanone) - 

report as a group, 

 e. CP: chloropicrin, 

 f. CH: chloral hydrate, 

 g. TOX: total organic halides, 

 h. Disinfectant residual, 

 i. Total coliforms, fecal coliforms, or Escherichia coli, 
63 

 j. Giardia, and 

 k. Total culturable viruses. 

 2. The following provisions shall apply: 

 a. Treatment plants using chloramines shall report cyanogen chloride; 

 b. Treatment plants using hypochlorite solutions shall report chlorate; 

 c. Treatment plants using ozone shall report bromate and aldehydes; and 

 d. Treatment plants using chlorine dioxide shall report chlorine dioxide 

residual, chlorite, chlorate, bromate, and aldehydes. 

 3. As required by the 40 CFR 141.153, results for the above contaminants, if 

found in the finished water, shall be reported in the table of analytical results in 

consumer confidence reports in the same manner as the unregulated contaminants 

(average and range of detection.) 

 (g) Additional health information required by 40 CFR 141.154. In addition to 

the requirements of 40 CFR 141.154, systems shall also include this additional health 

information when they: 

 1. Detect arsenic or nitrate at the MCL. Report the informational statements 

required by 40 CFR 141.154(b) or (c), respectively. 

 2. Detect TTHM at the MCL. Include in the report the informational 

statements required by 40 CFR 141.154(e). 

 (h) Educational Statement for Lead. If lead is detected above the action level 

in more than five percent, and up to and including ten percent of homes sampled, the 

system shall include in its CCR the language set forth in 40 CFR 141.154(d). Systems 

that collect fewer than 20 samples during each monitoring period do not have to include 

the educational statement for lead. 

 (i) Operation Violations. Systems with any of the problems listed in 

subparagraphs 1 – 3 below shall provide an explanation of the violation in their 

consumer confidence reports. The explanation shall include a description of the 

violation and its duration. 

 1. Certified Operator Requirement Violations. Systems that fail to maintain 

continuous usage of the services of an operator with the appropriate certification in 

accordance with Rule 62-699.310, F.A.C. 

 2. Disinfectant Requirement Violations. Systems that treat their water and 

that have disinfectant concentrations of less than 0.2 ppm free chlorine or its equivalent 

at the entry points to their distribution systems in routine monitoring as recorded on their 

monthly operation reports for the calendar year previous to the year in which the CCR is 

due. 

 3. Cross Connection Control Requirement Violations. Systems that fail to 

adopt and implement a written cross connection control and backflow prevention 

program as required by Rule 62-555.360, F.A.C. 

 (j) Table Format. All consumer confidence reports that are required to 

include a table of analytical results shall display these results in the same format and 

manner as shown in the FRWA/DEP CCR Template Instructions and Template,

February 5, 2003, which is incorporated herein by reference and is available from the 

Department of Environmental Protection, Drinking Water Section, Mail Station 3520, 

2600 Blair Stone Road, Tallahassee, Florida 32399-2400. 

 1. If reporting of analytical data is required, the reporting of these data shall 

appear in one or both of the following tables only: The main table of analytical results 

and the table of secondary contaminants analytical results. 

 a. The main table of analytical results shall contain only analytical results of 

detected regulated contaminants (i.e., contaminants subject to MCL, MRDL, TT, or AL 
64 

requirements), and detected unregulated contaminants for which the USEPA requires 

monitoring under 40 CFR 141.40 (Unregulated Contaminant Monitoring) or 141.142 and 

141.143 (Information Collection Rule.) 

 b. The table of secondary contaminants analytical results shall contain only 

analytical results for secondary contaminants where the highest single sample result 

exceeds the MCL. 

 2. Contaminants referenced in 1.a. above that were monitored but not 

detected shall not be included in the main table of analytical results or table of 

secondary contaminants analytical results. However, they may be reported in text 

outside the tables. 

 3. Violations. Violations and action levels exceeded shall be noted in the 

affirmative with either “Y” or “Yes” per the requirements in sub-subparagraphs a and b. 

In addition to following the requirements of 40 CFR 141.153(d)(6), systems shall include 

 a. The word “violations” in both the column heading of the main table of 

analytical results or the table of secondary contaminants analytical results and in the 

explanation located outside the main table of analytical results and table of secondary 

contaminants analytical results when reporting maximum contaminant level (MCL), 

maximum residual disinfectant level (MRDL), and treatment technique (TT) violations, 

and 

 b. The phrase “AL exceeded” in both the column heading of the main table of 

analytical results and in the explanation located outside the main table of analytical 

results and table of secondary contaminants analytical results when reporting the 

exceeding of action levels (AL) for lead or copper. 

 4. Contaminants for which there are secondary drinking water standards 

(MCLs) that were monitored but not detected shall not be included in the table of 

secondary contaminants analytical results, but may be reported in text outside the table. 

 5. The acronym “ND” means not detected and indicates that the substance 

was not found by laboratory analysis. ND does not mean zero, and zero shall not be 

used instead of ND where ND is the intended meaning. ND may be used in the main 

table of analytical results or the table of secondary contaminants analytical results only 

when 

 a. Reporting the lower limit of a range of analytical results, or 

 b. Reporting the level detected for systems with mutiple hydraulically 

independent distribution systems and separate columns for each service area. 

 (k) The CCR shall contain the explanation regarding contaminants which may 

reasonably be expected to be found in drinking water including bottled water presented 

in 40 CFR 141.153(h)(1)(i) – (iv) verbatim. 

 (l) Variances and exemptions. Community water systems operating under 

the terms of a variance or exemption issued by the state in accordance with Rules 62-

550.510 and 62-560.520, F.A.C., or Section 120.542, F.S., for the secondary 

contaminant MCLs listed in Rule 62-550.320, F.A.C., or for the primary contaminant 

MCLs for nickel and sodium listed in subsection 62-550.310(1), F.A.C., shall include in 

their CCRs: 

 1. An explanation of the reasons for the variance or exemption; 

 2. The date on which the variance or exemption was issued; 

 3. A brief status report on the steps the system is taking to install treatment, 

find alternative sources of water, or otherwise comply with the terms and schedules of 

the variance or exemption; and 

 4. A notice of any opportunity for public input in the review or renewal of the 

variance or exemption. 
65 

 (2) Use of Language Other Than English. Under 40 CFR 141.153(h)(3), 

where the proportion of non-English speaking residents served by the system exceeds 

20 percent of the total number of consumers served by the system, consumer 

confidence reports shall contain: information in the appropriate language(s) regarding 

the nature and importance of the report and a telephone number or address where such 

residents may contact the system to obtain a translated copy of the report or assistance 

in understanding the report. A statement to this effect shall be included in the report 

immediately after the title of the report. 

 (3) Report Delivery and Recordkeeping. These rules provide additional 

requirements to those in 40 CFR 141.155. 

 (a) Existing systems shall deliver their second CCR reports by July 1, 2000, 

and subsequent reports by July 1 annually thereafter. A new community water system 

activated after January 1, 1998, shall deliver its first report by July 1 of the year after its 

first full calendar year in operation and annually thereafter. 

 (b) A community water system that sells water to another community water 

system shall deliver the applicable information required in 40 CFR 141.153 to the buyer 

system by April 1, 2000, and by April 1 annually thereafter, or on a date mutually agreed 

upon by the seller system and the buyer system, and specifically included in a contract 

between the parties. 

 (c) Distribution Via the Internet. In accordance with 40 CFR 141.155(f), each 

community water system serving 100,000 or more shall post its current year’s CCR on a 

publicly accessible Internet site annually beginning July 1 for a period of no less than 

one year, and shall provide the Department with information on the appropriate Internet 

link(s) to its CCR using Form 62-555.900(19), F.A.C. 

 (d) Mailing Requirements. All systems shall mail or otherwise directly deliver 

one copy of their consumer confidence report to each billing customer. A community 

water system that sells water to another community water system need not deliver or 

mail its CCR to the buyer system if it has furnished the required consumer confidence 

information to the buyer system in accordance with paragraph 62-550.824(3)(b), F.A.C. 

Systems must make a good faith effort to reach all consumers, using one or more of the 

methods listed in Form 62-555.900(19), Certification of Delivery of Consumer 

Confidence Report, hereby adopted and incorporated by reference, effective date April 

10, 2003. Copies of this form are available from the Department of Environmental 

Protection, Drinking Water Section, M.S. 3520, 2600 Blair Stone Road, Tallahassee, 

Florida 32399-2400. 

 1. Mailing Waiver. In accordance with 40 CFR 141.155(g), the State of 

Florida waives the requirement that community water systems serving fewer than 

10,000 persons mail or directly deliver to each billing customer their consumer 

confidence reports provided that the systems have not had any MCL or monitoring and 

reporting (M/R) violations, nor have been issued formal Notices of Violations (NOVs), 

Consent Orders, Administrative Orders, or court-ordered civil actions during the year 

covered by the CCR. 

 2. The Department will notify systems that are ineligible for a mailing waiver 

in writing no later than April 1 annually. 

 a. Community water systems serving fewer than 10,000 persons that have 

been granted a mailing waiver shall publish their CCRs due July 1 of the current year in 

local newspapers, and shall do so at least once each year no later than July 1 of that 

same year. 

 b. In lieu of the requirement set forth in sub-subparagraph a. above, 

community water systems serving 500 or fewer persons that have been granted mailing 
66 

waivers and that elect to post notice(s) that the CCR is not being sent out but is 

available upon request, may post their notices in publicly accessible areas such as 

community bulletin boards for a period of no less than 30 days beginning no later than 

July 1 of that same year annually. 

 c. Prior to the CCR’s publication date(s) in a local newspaper, community 

water systems granted mailing waivers shall notify customers of the publication date(s), 

and shall inform customers that a copy of the CCR will not be mailed to them 

individually. 

 (e) Reporting. 

 1. Systems shall demonstrate compliance with the reporting requirements of 

40 CFR 141.155(c) by 

 a. Sending a copy of their consumer confidence report to the appropriate 

office of the Department no later than the date the system is required to distribute the 

report to its customers, and 

 b. Sending to the appropriate office of the Department a certification that the 

report has been distributed, that the information is correct, and that the information is 

consistent with compliance monitoring data. The certification must be sent by August 10 

annually. When reporting compliance with these requirements, systems shall use Form 

62-555.900(19), Certification of Delivery of Consumer Confidence Report, and may 

transmit the form via electronic mail. Copies of this form are available from the 

Department of Environmental Protection, Drinking Water Section, M.S. 3520, 2600 Blair 

Stone Road, Tallahassee, Florida 32399-2400. This form includes documentation of the 

methods used by systems to distribute their consumer confidence reports. 

 2. Systems supplying water to other systems shall 

 a. Send a copy of the information required by 40 CFR 141.153 or the 

complete consumer confidence report provided to the buyer system to the appropriate 

office of the Department no later than the date the system is required to furnish the 

buyer with the information, and 

 b. Send to the appropriate office of the Department a certification that the 

information or report has been furnished to the buyer system, that the information is 

correct, and that the information is consistent with compliance monitoring data. The 

certification must be sent by April 10 annually or within 10 days after the date that the 

system is required to furnish its report or information to its buyer. Systems shall use 

Form 62-555.900(21), Certification of Delivery of Consumer Confidence Information to 

Supplied System, hereby adopted and incorporated by reference, effective date April 

10, 2003 when reporting compliance with these reporting requirements and may 

transmit the form via electronic mail. Copies of this form are available from the 

Department of Environmental Protection, Drinking Water Section, M.S. 3520, 2600 Blair 

Stone Road, Tallahassee, Florida 32399--2400. 

 3. Each system shall send an informational copy of its consumer confidence 

report to its county health department if not sent under sub-subparagraph 62-550.824 

(3)(e)1.a., F.A.C. 

 4. Systems regulated by the Florida Public Service Commission (PSC) shall 

send an informational copy of their consumer confidence reports to the PSC 

headquarters office no later than the date they mail the reports to the appropriate office 

of the Department. The address of the PSC headquarters office is: Division of Water 

and Wastewater, Florida Public Service Commission, 2540 Shumard Oak Boulevard, 

Tallahassee, Florida 32399-0850. 

 5. The font size of all printed text in consumer confidence reports shall be 8 

point or larger. 
67 

 6. If the Department finds that a system’s consumer confidence report is not 

in compliance with the requirements of this section, the Department shall notify the 

system in writing specifying any changes that must be made. The system shall modify 

and redistribute its consumer confidence report and resubmit the report to the 

Department and certify its delivery using Form 62-555.900(19) within 90 days of receipt 

of the Department’s notification. 

Specific Authority 403.861(9), FS. Law Implemented 403.853(3), (4), 403.861(16), 

(17), FS. History -- New 9-22-99, Amended 8-1-00, 11-27-01, 4-10-03. 
68 

TABLE 1 

MAXIMUM CONTAMINANT LEVELS FOR INORGANIC COMPOUNDS 

FEDERAL 

CONTAMINANT ID 

NUMBER 

CONTAMINANT MCL (mg/L) 

1074 Antimony 0.006 

1005 Arsenic 0.05 through 

12/31/2004 

0.010 on and 

after 

01/01/2005 

1094 Asbestos 7 MFL 

1010 Barium 2 

1075 Beryllium 0.004 

1015 Cadmium 0.005 

1020 Chromium 0.1 

1024 Cyanide (as free Cyanide) 0.2 

1025 Fluoride 4.0 

1030 Lead 0.015 

1035 Mercury 0.002 

1036 Nickel 0.1 

1040 Nitrate 10 (as N) 

1041 Nitrite 1 (as N) 

 Total Nitrate and Nitrite 10 (as N) 

1045 Selenium 0.05 

1052 Sodium 160 

1085 Thallium 0.002 

Abbreviations Used: MCL = maximum contaminant level; 

 MFL = million fibers per liter (longer than 10 micrometers); 

 mg/L = milligrams per liter. 
69 

TABLE 2 

MAXIMUM RESIDUAL DISINFECTANT LEVELS 

FEDERAL 

CONTAMINANT 

ID NUMBER 

DISINFECTANT RESIDUAL MRDL (mg/L) 

1012 Chlorine 4.0 (as Cl2) 

1006 Chloramines 4.0 (as Cl2) 

1008 Chlorine Dioxide 0.8 (as ClO2) 

Abbreviations Used: mg/L = milligrams per liter; 

MRDL = maximum residual disinfectant level. 

TABLE 3 

STAGE 1 MAXIMUM CONTAMINANT LEVELS FOR DISINFECTION BYPRODUCTS 

FEDERAL 

CONTAMINANT 

ID NUMBER 

CONTAMINANT MCL (mg/L) 

2950 Total Trihalomethanes (TTHM) 0.080 

2456 Haloacetic Acids (Five) (HAA5) 0.060 

1011 Bromate 0.010 

1009 Chlorite 1.0 

Abbreviations Used: MCL = maximum contaminant level; 

mg/L = milligrams per liter. 
70 

TABLE 4 

MAXIMUM CONTAMINANT LEVELS FOR VOLATILE ORGANIC CONTAMINANTS 

FEDERAL 

CONTAMINANT 

ID NUMBER 

CONTAMINANT & (CAS NUMBER) MCL (mg/L) 

2977 1,1-Dichloroethylene (75-35-4) 0.007 

2981 1,1,1-Trichloroethane (71-55-6) 0.2 

2985 1,1,2-Tricholoroethane (79-00-5) 0.005 

2980 1,2-Dichloroethane (107-06-2) 0.003 

2983 1,2-Dichloropropane (78-87-5) 0.005 

2378 1,2,4-Tricholorobenzene (120-82-1) 0.07 

2990 Benzene (71-43-2) 0.001 

2982 Carbon tetrachloride (56-23-5) 0.003 

2380 cis-1,2-Dichloroethylene (156-59-2) 0.07 

2964 Dichloromethane (75-09-2) 0.005 

2992 Ethylbenzene (100-41-4) 0.7 

2989 Monochlorobenzene (108-90-7) 0.1 

2968 o-Dichlorobenzene (95-50-1) 0.6 

2969 para-Dichlorobenzene (106-46-7) 0.075 

2996 Styrene (100-42-5) 0.1 

2987 Tetrachloroethylene (127-18-4) 0.003 

2991 Toluene (108-88-3) 1 

2979 trans-1,2-Dichloroethylene (156-60-5) 0.1 

2984 Trichloroethylene (79-01-6) 0.003 

2976 Vinyl chloride (75-01-4) 0.001 

2955 Xylenes (total) (1330-20-7) 10 

Abbreviations used: CAS Number = Chemical Abstract System Number; 

MCL = maximum contaminant level; 

mg/L = milligrams per liter. 
71 

TABLE 5 

MAXIMUM CONTAMINANT LEVELS FOR SYNTHETIC ORGANIC CONTAMINANTS 

FEDERAL 

CONTAMINAN

T ID NUMBER 

CONTAMINANT & (CAS NUMBER) MCL (mg/L) Regulatory 

Detection 

Limit (mg/L) 

2063 2,3,7,8-TCDD (Dioxin) (1746-01-6) 3 X 10-8 5 x 10-9 

2105 2,4-D (94-75-7) 0.07 0.0001 

2110 2,4,5-TP (Silvex) (93-72-1) 0.05 0.0002 

2051 Alachlor (15972-60-8) 0.002 0.0002 

2050 Atrazine (1912-24-9) 0.003 0.0001 

2306 Benzo(a)pyrene (50-32-8) 0.0002 0.00002 

2046 Carbofuran (1563-66-2) 0.04 0.0009 

2959 Chlordane (57-74-9) 0.002 0.0002 

2031 Dalapon (75-99-0) 0.2 0.001 

2035 Di(2-ethylhexyl)adipate (103-23-1) 0.4 0.0006 

2039 Di(2-ethylhexyl)phthalate (117-81-7) 0.006 0.0006 

2931 Dibromochloropropane (DBCP) (96-

)

0.0002 0.00002 

2041 Dinoseb (88-85-7) 0.007 0.0002 

2032 Diquat (85-00-7) 0.02 0.0004 

2033 Endothall (145-73-3) 0.1 0.009 

2005 Endrin (72-20-8) 0.002 0.00001 

2946 Ethylene dibromide (EDB) (106-93-4) 0.00002 0.00001 

2034 Glyphosate (1071-83-6) 0.7 0.006 

2065 Heptachlor (76-44-8) 0.0004 0.00004 

2067 Heptachlor epoxide (1024-57-3) 0.0002 0.00002 

2274 Hexachlorobenzene (118-74-1) 0.001 0.0001 

2042 Hexachlorocyclopentadiene (77-47-4) 0.05 0.0001 

2010 Lindane (58-89-9) 0.0002 0.00002 

2015 Methoxychlor (72-43-5) 0.04 0.0001 

2036 Oxamyl (vydate) (23135-22-0) 0.2 0.002 

2326 Pentachlorophenol (87-86-5) 0.001 0.00004 

2040 Picloram (1918-02-1) 0.5 0.0001 

2383 Polychlorinated biphenyls (PCBs) 0.0005 0.0001 

2037 Simazine (122-34-9) 0.004 0.00007 

2020 Toxaphene (8001-35-2) 0.003 0.001 

Abbreviations used: CAS Number = Chemical Abstract System Number; 
72 

MCL = maximum contaminant level; 

mg/L = milligrams per liter. 

NOTE: The Detection Limits listed in this table become effective January 22, 2004. 
73 

TABLE 6 

SECONDARY DRINKING WATER STANDARDS 

FEDERAL 

CONTAMINANT 

ID NUMBER 

CONTAMINANT SMCL (mg/L)* 

1002 Aluminum 0.2 

1017 Chloride 250 

1022 Copper 1 

1025 Fluoride 2.0 

1028 Iron 0.3 

1032 Manganese 0.05 

1050 Silver 0.1 

1055 Sulfate 250 

1095 Zinc 5 

1905 Color 15 color units 

1920 Odor** 3 (threshold odor number) 

1925 pH 6.5 - 8.5 

1930 Total Dissolved Solids 500 

2905 Foaming Agents 0.5 

Abbreviations Used: 

 SMCL = maximum contaminant level; 

mg/L = milligrams per liter. 

* Except color, odor, and pH. 

** For purpose of compliance with ground water quality secondary standards, as referenced in 

Chapter 62-520, F.A.C., levels of ethylbenzene exceeding 30 micrograms per liter, toluene 

exceeding 40 micrograms per liter, or xylenes exceeding 20 micrograms per liter shall be 

considered equivalent to exceeding the drinking water secondary standard for odor. 
DEP 2007 DRINKING WATER STANDARDS, MONITORING 62-550 

AND REPORTING 

Effective 9-18-07 

74 

TABLE 7: MONITORING FREQUENCIES AND LOCATIONS 

CONTAMINANT OR 

DISINFECTANT 

RESIDUAL GROUP 

APPLICABILITY INITIAL OR ROUTINE 

MONITORING 

TRIGGER THAT 

INCREASES 

MONITORING 

INCREASED MONITORING TRIGGER THAT 

REDUCES 

MONITORING 

RED

 GW SYSTEMS SUBPART H 

SYSTEMS 

 GW SYSTEMS SUBPART H 

SYSTEMS 

 GW SY

ASBESTOS  RULE 62-550.511 

CWSs, NTNCWSs 1 SAMPLE EVERY 9 YEARS SAMPLE > MCL 1 SAMPLE QUARTERLY SYSTEM NOT 

SUSCEPTIBLE 

NO S

NITRATE & NITRITE  RULES 62-550.500(5) &  62-550.512 

CWSs, NTNCWSs 1 SAMPLE 

ANNUALLY 

1 SAMPLE 

QUARTERLY 

GW SYS. WITH 

SAMPLE ≥ 50% OF 

MCL 

1 SAMPLE 

QUARTERLY 

--- SUBPART H SYS. 

WITH EACH OF 4 

MOST RECENT 

QUARTERLY 

SAMPLES < 50% 

OF MCL 

--

 TWSs 1 SAMPLE ANNUALLY NITRATE SAMPLE 

> MCL OR NITRITE 

SAMPLE ≥ 50% OF 

MCL 

1 SAMPLE QUARTERLY --- 

INORGANICS  RULES 62-550.500(5) &  62-550.513 

CWSs, NTNCWSs 1 SAMPLE 

EVERY 3 YEARS

1 SAMPLE 

ANNUALLY 

SAMPLE > MCL 1 SAMPLE QUARTERLY FOUR 

CONSECUTIVE 

QUARTERS < MCL

SEE R

CHLORINE & CHLORAMINES  RULES 62-550.514(1) &  62-550.821 

CWSs/NTNCWSs 

ADDING 

CHLORINE OR 

CHLORAMINES 

MULTIPLE SAMPLES MONTHLY; 

SEE NOTE 2 

--- --- --- 

CHLORINE DIOXIDE  RULES 62-550.514(1) &  62-550.821 

CWSs/NTNCWSs/T

WSs ADDING 

CHLORINE 

DIOXIDE 

1 SAMPLE DAILY SAMPLE > MCL ADDITIONAL 3-SAMPLE SET THE 

FOLLOWING DAY 

--- 
DEP 2007 DRINKING WATER STANDARDS, MONITORING 62-550 

AND REPORTING 

Effective 9-18-07 

75 

CONTAMINANT OR 

DISINFECTANT 

RESIDUAL GROUP 

APPLICABILITY INITIAL OR ROUTINE 

MONITORING 

TRIGGER THAT 

INCREASES 

MONITORING 

INCREASED MONITORING TRIGGER THAT 

REDUCES 

MONITORING 

RED

 GW SYSTEMS SUBPART H 

SYSTEMS 

 GW SYSTEMS SUBPART H 

SYSTEMS 

 GW SY

TOTAL TRIHALOMETHANES & HALOACETIC ACIDS (FIVE) - STAGE 1 MCLs  RULES 62-550.514(2)  & 62-550.821 

CWSs/NTNCWSs 

ADDING A 

DISINFECTANT & 

SERVING ≥ 10,000 

PERSONS 

1 SAMPLE PER 

TREATMENT 

PLANT 

QUARTERLY 

4 SAMPLES PER 

TREATMENT 

PLANT 

QUARTERLY 

--- --- GW SYS. WITH 

ANNUAL AVG. 

TTHM & HAA5 ≤

50% OF MCL; 

SUBPART H SYS. 

WITH ANNUAL 

AVG. 

SOURCE-WATER 

TOC ≤ 4.0 MG/L & 

ANNUAL AVG. 

TTHM & HAA5 ≤

50% OF MCL 

1 SAMP

TREAT

PLA

ANNU

DUR

MONT

WARM

WATER 

CWSs/NTNCWSs 

ADDING A 

DISINFECTANT & 

SERVING 500 to 

9,999 PERSONS 

1 SAMPLE PER 

TREATMENT 

PLANT 

ANNUALLY 

DURING 

MONTH OF 

WARMEST 

WATER TEMP. 

1 SAMPLE PER 

TREATMENT 

PLANT 

QUARTERLY 

GW SYS. WITH 

AVG. OF ANNUAL 

SAMPLES > MCL 

1 SAMPLE PER 

TREATMENT 

PLANT 

QUARTERLY 

--- GW SYS. WITH 

ANNUAL AVG. 

TTHM & HAA5 ≤

50% OF MCL FOR 2 

CONSECUTIVE 

YEARS OR ≤ 25% 

OF MCL FOR 1 

YEAR; SUBPART H 

SYS. WITH 

ANNUAL AVG. 

SOURCE-WATER 

TOC ≤ 4.0 MG/L & 

ANNUAL AVG. 

TTHM & HAA5 ≤

50% OF MCL 

1 SAMP

TREAT

PLANT E

YEARS D

MONT

WARM

WATER 

CWSs/NTNCWSs 

ADDING A 

DISINFECTANT & 

SERVING < 500 

PERSONS 

1 SAMPLE PER TREATMENT 

ANNUALLY DURING MONTH OF 

WARMEST WATER TEMP. 

AVG. OF ANNUAL 

SAMPLES > MCL 

1 SAMPLE PER TREATMENT 

PLANT QUARTERLY 

GW SYS. WITH 

ANNUAL AVG. 

TTHM & HAA5 ≤

50% OF MCL FOR 2 

CONSECUTIVE 

YEARS OR ≤ 25% 

OF MCL FOR 1 

YEAR 

CHLORITE - STAGE 1 MCL 

CWSs/NTNCWSs 

ADDING 

1 SAMPLE DAILY SAMPLE > MCL ADDITIONAL 3-SAMPLE SET THE 

FOLLOWING DAY 

--- 
DEP 2007 DRINKING WATER STANDARDS, MONITORING 62-550 

AND REPORTING 

Effective 9-18-07 

76 

CONTAMINANT OR 

DISINFECTANT 

RESIDUAL GROUP 

APPLICABILITY INITIAL OR ROUTINE 

MONITORING 

TRIGGER THAT 

INCREASES 

MONITORING 

INCREASED MONITORING TRIGGER THAT 

REDUCES 

MONITORING 

RED

 GW SYSTEMS SUBPART H 

SYSTEMS 

 GW SYSTEMS SUBPART H 

SYSTEMS 

 GW SY

 RULES 62-550.514(2)  & 62-550.821 

CHLORINE 

DIOXIDE 

3-SAMPLE SET MONTHLY --- --- NO INDIVIDUAL 

ENTRY-POINT OR 

DIST. SYS. 

SAMPLE > MCL 

FOR 1 YEAR 

3-SAM

BROMATE - STAGE 1 MCL  RULES 62-550.514(2)(b) & 62-550.821 

CWSs/NTNCWSs 

ADDING OZONE 

1 SAMPLE PER TREATMENT 

PLANT MONTHLY 

--- --- ANNUAL AVG. 

SOURCE-WATER 

BROMIDE < 0.05 

MG/L BASED 

UPON MONTHLY 

MEASUREMENTS 

1 SAM

PL

VOLATILE ORGANICS  RULES 62-550.500(5) &  62-550.515 

CWSs, NTNCWSs 4 CONSECUTIVE QUARTERLY 

SAMPLES EVERY 3 YEARS OR, IF 

AUTHORIZED, 1 SAMPLE 

ANNUALLY; SEE NOTE 6 

DETECTION OF 

ANY VOC AT >

0.0005 MG/L 

1 SAMPLE QUARTERLY GW SYS. WITH NO 

DETECTION OF 

ANY VOC DURING 

3 YEARS OF 

ANNUAL 

SAMPLING 

1 SAM

EVERY 3 

SYNTHETIC ORGANICS  RULES 62-550.500(5) &  62-550.516 

CWSs/NTNCWSs 

SERVING > 3,300 

PERSONS 

4 CONSECUTIVE QUARTERLY 

SAMPLES EVERY 3 YEARS 

DETECTION OF 

ANY SOC 

1 SAMPLE QUARTERLY NO DETECTION 

OF ANY SOC 

DURING INITIAL 

COMPLIANCE 

PERIOD 

2 QUAR

SAME 

 CWSs/NTNCWSs 

SERVING ≤ 3,300 

PERSONS 

 1 SAM

MICROBIOLOGICAL CONTAMINANTS  RULE 62-550.518 

CWSs, NTNCWSs, 

TWSs SERVING > 

1,000 PERSONS 

MULTIPLE SAMPLES MONTHLY; 

SEE NOTE 8 

TOTAL 

COLIFORM 

POSITIVE SAMPLE

NOTE 9 --- 

TWSs SERVING ≤

1,000 PERSONS 

2 SAMPLES 

QUARTERLY 

2 SAMPLES 

MONTHLY 
DEP 2007 DRINKING WATER STANDARDS, MONITORING 62-550 

AND REPORTING 

Effective 9-18-07 

77 

CONTAMINANT OR 

DISINFECTANT 

RESIDUAL GROUP 

APPLICABILITY INITIAL OR ROUTINE 

MONITORING 

TRIGGER THAT 

INCREASES 

MONITORING 

INCREASED MONITORING TRIGGER THAT 

REDUCES 

MONITORING 

RED

 GW SYSTEMS SUBPART H 

SYSTEMS 

 GW SYSTEMS SUBPART H 

SYSTEMS 

 GW SY

SECONDARY CONTAMINANTS  RULES 62-550.500(5) &  62-550.520 

CWSs 1 SAMPLE EVERY 3 YEARS --- --- --- 

GROSS ALPHA, RADIUM-226, RADIUM-228, & URANIUM  RULE 62-550.519(1) 

CWSs INITIAL MONITORING IS 4 

CONSECUTIVE QUARTERLY 

SAMPLES 

ROUTINE MONITORING IS 1 

SAMPLE EVERY 3 YEARS 

NOTE 10 

SAMPLE > MCL 

OR 

IF MONITORING 

ONCE EVERY 6 

YEARS, A SAMPLE 

RESULT > 1/2 MCL 

OR 

IF MONITORING 

ONCE EVERY 9 

YEARS, A SAMPLE 

RESULT ≥

DETECTION LIMIT

1 SAMPLE QUARTERLY WHEN 

PREVIOUS SAMPLE RESULT IS > 

MCL 

OR 

IF SAMPLING EVERY 9 YEARS 

AND THE SAMPLE IS ≤ MCL BUT > 

1/2 MCL, SAMPLE EVERY 6 

YEARS; OR IF SAMPLE IS ≥

DETECTION LIMIT BUT ≤ 1/2 MCL

OR 

IF SAMPLING EVERY 6 YEARS 

AND THE SAMPLE IS > 1/2 MCL 

BUT ≤ MCL, SAMPLE EVERY 3 

YEARS 

AVERAGE OF 

INITIAL 

MONITORING 

SAMPLES OR 

LAST REDUCED 

MONITORING 

SAMPLE 

< DETECTION 

LIMIT 

1 SAM

DETECTION LIMIT 

≤ AVERAGE OF 

INITIAL 

MONITORING 

SAMPLES OR 

LAST REDUCED 

MONITORING 

SAMPLE ≤ 1/2 MCL

1 SAM
DEP 2007 DRINKING WATER STANDARDS, MONITORING 62-550 

AND REPORTING 

Effective 9-18-07 

78 

CONTAMINANT OR 

DISINFECTANT 

RESIDUAL GROUP 

APPLICABILITY INITIAL OR ROUTINE 

MONITORING 

TRIGGER THAT 

INCREASES 

MONITORING 

INCREASED MONITORING TRIGGER THAT 

REDUCES 

MONITORING 

RED

 GW SYSTEMS SUBPART H 

SYSTEMS 

 GW SYSTEMS SUBPART H 

SYSTEMS 

 GW SY

BETA PARTICLE & PHOTON RADIOACTIVITY  RULE 62-550.519(2) 

CWSs 

DESIGNATED AS 

VULNERABLE 

1 SAMPLE QUARTERLY FOR 

GROSS BETA & 1 SAMPLE 

ANNUALLY FOR TRITIUM & 

STRONTIUM-90 

SAMPLE > MCL 1 SAMPLE MONTHLY FOR GROSS 

BETA, TRITIUM, & STRONTIUM-90

ANNUAL 

AVERAGE OF 

GROSS BETA 

MINUS 

POTASSIUM-40 

≤ 50 pCi/L 

1 SAMP

GRO

CWSs 

DESIGNATED AS 

UTILIZING 

WATERS 

CONTAMINATED 

BY EFFLUENTS 

FROM NUCLEAR 

FACILITIES 

QUARTERLY FOR GROSS BETA & 

IODINE-131 & ANNUALLY FOR 

TRITIUM & STRONTIUM-90; SEE 

NOTE 11 

QUARTERLY 

RESULT FOR 

GROSS BETA OR 

IODINE-131 > 

MCL; ANNUAL 

RESULT FOR 

TRITIUM OR 

STRONTIUM-90 > 

MCL 

MONTHLY FOR GROSS BETA, 

IODINE-131, TRITIUM, & 

STRONTIUM-90 

ANNUAL 

AVERAGE OF 

GROSS BETA 

MINUS 

POTASSIUM-40 

≤ 15 pCi/L 

EVER

BETA, 

Abbreviations used: CWSs = community water systems; SOC = synthetic organic contaminan

GW SYSTEMS = ground water systems; TOC = total organic carbon; HAA5 = haloacetic acids (five); TTHM= total trihalomethanes;  MCL = maximum contaminant level; TWSs = transient non-community wa MG/L = milligrams per liter; VOC = volatile organic contaminant. NTNCWSs = non-transient non-community water systems; 

NOTE 1: Systems susceptible to asbestos contamination due solely to corrosion of asbestos-cement pipe shall sample at a tap served by as

under conditions where asbestos contamination is most likely to occur. Systems susceptible to asbestos contamination due solely to source w

entry point to the distribution system during normal operating conditions. Systems susceptible to asbestos contamination due to both source 

asbestos-cement pipe shall sample at a tap served by asbestos-cement pipe and under conditions where asbestos contamination is most likNOTE 2: Systems shall measure the residual disinfectant level at the same locations in the distribution system where, and at the same time w

sampled. NOTE 3: Systems shall take routine daily samples at the entrance to the distribution system. Systems shall take additional three-sample sets 

at the following locations: 

(a) If chloramines are used to maintain a disinfectant residual in the distribution system or if chlorine is used to maintain a disinfecta

distribution system and there are no disinfection points after the entrance to the distribution system (i.e., no booster chlorinationthree samples as close to the first customer as possible at intervals of at least six hours. 
DEP 2007 DRINKING WATER STANDARDS, MONITORING 62-550 

AND REPORTING 

Effective 9-18-07 

79 

(b) If chlorine is used to maintain a disinfectant residual in the distribution system and there are one or more disinfectant addition points 

distribution system (i.e., booster chlorination), the system shall take one sample at each of the following locations: as close to the fir

a location representative of average residence time, and as close to the end of the distribution system as possible.

NOTE 4: Systems taking one sample shall take the sample at a location reflecting maximum residence time in the distribution system. Sy

one sample shall take at least 25% of the samples at locations representing maximum residence time of the water in the distribution systremaining samples at locations representing at least average residence time in the distribution system and representing the entire distrib

account number of persons served, different sources of water, and different treatment methods. NOTE 5: Systems shall take routine daily samples at the entrance to the distribution system. Systems shall take routine monthly or additthe distribution system; each three-set sample shall consist of one sample at each of the following locations: a location as close to the firs

location representative of average residence time, and a location reflecting maximum residence time in the distribution system.

NOTE 6: For initial base point monitoring, systems shall take four consecutive quarterly samples during the first three-year compliance period

detect any VOC, it shall take one sample annually beginning with the next three-year compliance period. NOTE 7: During the first quarter of initial base point monitoring, GW systems shall take a minimum of one sample that is representative of ea

circumstances, systems shall sample at every entry point to the distribution system during normal operating conditions.NOTE 8: The minimum number of samples shall be as set forth in Rule 62-550.518(2), F.A.C. NOTE 9: Systems shall conduct repeat monitoring in accordance with Rule 62-550.518(7), F.A.C., and systems that routinely collect fewer th

shall collect at least five samples during the next month the system provides water to the public. NOTE 10: The Department shall waive the final two quarters of initial monitoring for a sampling point if the results of the samples from the pre

below the regulatory detection limit. Additionally, under the conditions described in Rule 62-550.519(1)(c), F.A.C., historical data may be use

requirements. NOTE 11: Quarterly monitoring for gross beta shall be based on the analysis of monthly samples or the analysis of a composite of three mon

131, a composite of five consecutive daily samples shall be analyzed once each quarter. Annual monitoring for tritium and strontium-90 shal

the analysis of a composite of four consecutive quarterly samples or analysis of four quarterly samples. 

DEP 2007 DRINKING WATER STANDARDS, MONITORING 62-550 

AND REPORTING 

Effective 9-18-07 

81 

TABLE 8: INITIAL OR ROUTINE MONITORING SCHEDULE 

REFERENCE RULE 62-550.500(3) 

Under initial or routine monitoring, public water systems shall take required samples during the time period spe

CONTAMINANT OR DISINFECTANT 

RESIDUAL GROUP 

COMMUNITY WATER SYSTEMS 

SERVING MORE THAN 3,300 PEOPLE 

COMMUNITY WATER SYSTEMS 

SERVING 3,300 OR FEWER PEOPLE 

NON-TRANSIENT NON-COMMUNITY 

WATER SYSTEMS 

ASBESTOS  RULES 62-550.500(3) & 62-550.511 

FIRST YEAR OF EACH NINE-YEAR 

COMPLIANCE CYCLE 

SECOND YEAR OF EACH NINE-YEAR 

COMPLIANCE CYCLE 

THIRD YEAR OF EACH NINE-YEAR 

COMPLIANCE CYCLE 

NITRATES AND NITRITES  RULES 62-550.500(3)  & 62-550.512 

GROUND 

WATER 

SYSTEMS 

ANNUALLY 

 SUBPART H 

SYSTEMS 

QUARTERLY 

INORGANICS  RULES 62-550.500(3)  & 62-550.513 

GROUND 

WATER 

SYSTEMS 

FIRST YEAR OF EACH THREE-YEAR 

COMPLIANCE PERIOD 

SECOND YEAR OF EACH THREEYEAR COMPLIANCE PERIOD THIRD YEAR OF EACH THREE-YEAR COMPLIANCE PERIOD 

 SUBPART H 

SYSTEMS 

ANNUALLY 

CHLORINE & CHLORAMINES  RULES 62-550.514(1) & 62-550.821 

MONTHLY FOR SYSTEMS ADDING CHLORINE OR CHLORAMINES 

CHLORINE DIOXIDE  RULES 62-550.514(1) & 62-550.821 

DAILY FOR SYSTEMS ADDING CHLORINE DIOXIDE 

TOTAL TRIHALOMETHANES & HALOACETIC ACIDS (FIVE) – STAGE 1 MCL  RULES 62-550.500(3),  550.514(2), & 62-550.821 

GROUND 

WATER 

SYSTEMS 

QUARTERLY FOR SYSTEMS ADDING 

A DISINFECTANT & SERVING ≥ 10,000 

PEOPLE & ANNUALLY DURING 

MONTH OF WARMEST WATER 

TEMPERATURE FOR SYSTEMS 

ADDING A DISINFECTANT & SERVING 

< 10,000 PEOPLE 

ANNUALLY DURING MONTH OF 

WARMEST WATER TEMPERATURE 

FOR SYSTEMS ADDING A 

DISINFECTANT 

QUARTERLY FOR SYSTEMS ADDING A 

DISINFECTANT & SERVING ≥ 10,000 

PEOPLE & ANNUALLY DURING MONTH 

OF WARMEST WATER TEMPERATURE 

FOR SYSTEMS ADDING A 

DISINFECTANT & SERVING < 10,000 

PEOPLE 

 SUBPART H 

SYSTEMS 

QUARTERLY FOR SYSTEMS ADDING 

A DISINFECTANT 

QUARTERLY FOR SYSTEMS ADDING A DISINFECTANT & SERVING ≥ 500 

PEOPLE & ANNUALLY DURING MONTH OF WARMEST WATER TEMPERATURE 

FOR SYSTEMS ADDING A DISINFECTANT & SERVING < 500 PEOPLE 
DEP 2007 DRINKING WATER STANDARDS, MONITORING 62-550 

AND REPORTING 

Effective 9-18-07 

82 

CONTAMINANT OR DISINFECTANT 

RESIDUAL GROUP 

COMMUNITY WATER SYSTEMS 

SERVING MORE THAN 3,300 PEOPLE 

COMMUNITY WATER SYSTEMS 

SERVING 3,300 OR FEWER PEOPLE 

NON-TRANSIENT NON-COMMUNITY 

WATER SYSTEMS 

CHLORITE – STAGE 1 MCL  RULES 62-550.514(2) & 62-550.821 

DAILY AT ENTRANCE TO DISTRIBUTION SYSTEM & MONTHLY IN DISTRIBUTION SYSTEM FOR SYSTEMS ADDING 

CHLORINE DIOXIDE 

BROMATE – STAGE 1 MCL  RULES 62-550.514(2) & 62-550.821 

MONTHLY FOR SYSTEMS ADDING OZONE 

VOLATILE ORGANICS  RULES 62-550.500(3) & 62-550.515 

QUARTERLY OR, IF AUTHORIZED, 

ANNUALLY DURING THE FIRST YEAR 

OF EACH THREE-YEAR COMPLIANCE 

PERIOD 

QUARTERLY OR, IF AUTHORIZED, 

ANNUALLY DURING THE SECOND 

YEAR OF EACH THREE-YEAR 

COMPLIANCE PERIOD 

QUARTERLY OR, IF AUTHORIZED, 

ANNUALLY DURING THE THIRD YEAR 

OF EACH THREE-YEAR COMPLIANCE 

PERIOD 

SYNTHETIC ORGANICS  RULES 62-550.500(3) & 62-550.516 

QUARTERLY DURING THE FIRST 

YEAR OF EACH THREE-YEAR 

COMPLIANCE PERIOD. UNLESS 

REDUCED MONITORING IS 

AUTHORIZED 

QUARTERLY DURING THE SECOND 

YEAR OF EACH THREE-YEAR 

COMPLIANCE PERIOD. UNLESS 

REDUCED MONITORING IS 

AUTHORIZED 

QUARTERLY DURING THE THIRD 

YEAR OF EACH THREE-YEAR 

COMPLIANCE PERIOD UNLESS 

REDUCED MONITORING IS 

AUTHORIZED 

MICROBIOLOGICAL CONTAMINANTS  RULES 62-550.500(3)  & 62-550.518 

GROUND 

WATER 

SYSTEMS 

MONTHLY 

 SUBPART H 

SYSTEMS 

MONTHLY 

GROSS ALPHA, RADIUM-226, RADIUM228 & URANIUM  RULES 62-550.500(3) & 62-550.519 

ROUTINE MONITORING OCCURS 

DURING FIRST YEAR OF EACH 

THREE-YEAR COMPLIANCE PERIOD 

UNLESS REDUCED MONITORING IS 

APPROVED 

ROUTINE MONITORING OCCURS 

DURING SECOND YEAR OF EACH 

THREE-YEAR COMPLIANCE PERIOD 

UNLESS REDUCED MONITORING IS 

APPROVED 

NOT REQUIRED 

BETA PARTICLE & PHOTON RADIOACTIVITY  RULES 62-550.500(3)  & 62-550.519 

QUARTERLY/ANNUALLY FOR SYSTEMS DESIGNATED AS VULNERABLE OR 

UTILIZING WATERS CONTAMINATED BY EFFLUENTS FROM NUCLEAR 

FACILITIES 

NOT REQUIRED 

SECONDARY CONTAMINANTS  RULES 62-550.500(3) & 62-550.520 

FIRST YEAR OF EACH THREE-YEAR 

COMPLIANCE PERIOD 

SECOND YEAR OF EACH THREEYEAR COMPLIANCE PERIOD NOT REQUIRED