reglab/statecodes huggingface dataset:
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-5 - GROUNDWATER SOURCES AND TREATMENT › Section 335-7-5-.13 - Springs

Current through Register Vol. 42, No. 9, June 28, 2024
Springs, quarries, and other groundwater sources open to the
				  atmosphere and under the direct influence of surface water are classified as a
				  surface source requiring complete treatment and filtration. A proposal for use
				  of a spring without complete treatment shall meet the following
				  requirement:
(a) The results of flow,
				turbidity and temperature data taken twice weekly for a minimum of 12
				consecutive months,
(b) Total and
				fecal coliform (or E. coli) bacteria results from weekly sampling for a minimum
				of 12 consecutive months,
(c) Data
				indicating the site is not subject to flooding, and
(d) Analysis results from a certified
				laboratory for all contaminants identified in the primary and secondary
				standards and any listed unregulated contaminants.
Rule
					 335-7-5-.21 was renumbered .13 as
					 per certification filed November 7, 2005; effective December 12, 2005.
Authors:
Joe Alan Power, Edgar K.
					 Hughes
Statutory Authority:
Code of Ala.
					 1975
, §§
											22-23-33,
					 22-23-49,
					 22-22A-5,
					 22-22A-6.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-5 - GROUNDWATER SOURCES AND TREATMENT › Section 335-7-5-.14 - Abandoned Wells

Current through Register Vol. 42, No. 9, June 28, 2024
Abandoned wells and bore holes shall be filled and sealed to
				  prevent contamination of ground water formations. Where feasible or when
				  required by the Department, wells shall be completely filled with neat cement.
				  Other wells shall be sealed in accordance with the most recent American Water
				  Works Association Standards, except that the sealing material for the top 20
				  feet of fill must be neat cement and no material that could impart taste, odor,
				  or toxic components to water may be used in the sealing process.
Author:
Joe Alan Power, Edgar K.
				  Hughes
Rule
					 335-7-5-.22 was renumbered .14 as
					 per certification filed November 7, 2005; effective December 12,
					 2005.
Statutory Authority:
Code of Ala.
					 1975
, §§
											22-23-33,
					 22-23-49,
					 22-22A-5,
					 22-22A-6.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-5 - GROUNDWATER SOURCES AND TREATMENT › Section 335-7-5-.15 - Ground Water Quality

Current through Register Vol. 42, No. 9, June 28, 2024
The quality of water produced from wells and springs must be
				  determined through analysis of samples representative of the sources.
(a) Physical Quality. Water produced from
				wells or springs to serve a community or NTNC system shall be free of rock or
				sand particles, silt, mud, or other foreign material. If compliance cannot be
				judged through visual observation, the following procedures shall be followed:
1. A turbidity test shall be performed
				according to methods approved by the Department and the results submitted to
				the Department.
2. A sample of the
				water shall be subjected to centrifuge or filtering tests. The test method
				shall be submitted by the project engineer to the Department which shall review
				and approve the method and apparatus prior to testing. If the design and
				apparatus are approved, the full capacity of the well upon start-up shall be
				tested for ten minutes. The maximum acceptable amount of material collected is
				one part per million.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-5 - GROUNDWATER SOURCES AND TREATMENT › Section 335-7-5-.16 - Treatment Of Groundwater

Current through Register Vol. 42, No. 9, June 28, 2024
Treatment facilities must be constructed by community and
				  NTNC systems to provide water meeting all primary and secondary drinking water
				  standards. Treatment facilities maintaining more than 2500 pounds of chlorine
				  should contact ADEM Air Division to determine responsibilities under the
				  Accidental Release Prevention and Risk Management Program.
Author:
Joe Alan Power, Edgar K.
				  Hughes
Rule 335-7-5-.24 was renumbered .15 as per certification
					 filed November 7, 2005; effective December 12,
					 2005.
Statutory Authority:
Code of Ala.
					 1975
, §§ 22-23-1 through
					 22-24-12.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-5 - GROUNDWATER SOURCES AND TREATMENT › Section 335-7-5-.17 - Disinfection Requirements

Current through Register Vol. 42, No. 9, June 28, 2024
Disinfection of the water shall be accomplished using a
				  chemical or treatment technique accepted by the Department. Sufficient contact
				  time to allow proper disinfection to take place must be provided as
				  follows:
(a) A chlorine concentration
				time (CT) of at least 60 shall be provided when the average monthly turbidity
				is less than five NTU, and
1. The geologic
				conditions are such that contamination may occur, or
2. The average total coliform count of the
				raw water exceeds 20 per 100 milliliters but is less than 100 per 100
				milliliters for an average of weekly samples for a minimum of four consecutive
				months, or
3. The average fecal
				coliform (or E. coli) count of the raw water exceeds five per 100 milliliters
				but is less than 20 per 100 milliliters for an average of weekly samples for a
				minimum of four consecutive months.
4. Should a disinfectant other than chlorine
				be used, an equivalent CT time will be provided by the Department.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-5 - GROUNDWATER SOURCES AND TREATMENT › Section 335-7-5-.18 - Filtration Requirements

Current through Register Vol. 42, No. 9, June 28, 2024
Treatment processes to include filtration are required when
				  raw water quality from a groundwater source exceeds any of the following
				  parameters:
(a) Turbidity - 5.0
				NTU
(b) Total Coliform - 100 per
				100 milliliter of sample
(c) Fecal
				Coliform (or E. coli)- 20 per 100 milliliter of sample
(d) Iron - 0.6 milligrams per liter
(e) Manganese - 0.1 milligrams per
				liter
Rule 335-7-5-.26 was renumbered .18 as per certification
					 filed November 7, 2005; effective December 12, 2005.
Authors:
Joe Alan Power, Edgar K.
					 Hughes
Statutory Authority:
Code of Ala.
					 1975
, §§ 22-23-1 through
					 22-24-12.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-5 - GROUNDWATER SOURCES AND TREATMENT › Section 335-7-5-.19 - Filtration Processes

Current through Register Vol. 42, No. 9, June 28, 2024
Treatment processes, including filtration, are required to
				  reduce contaminant levels to meet existing standards. Coating materials inside
				  the filter shall not impart an undesirable taste, odor or contribute to an
				  increase in the concentration of any regulated contaminants to the water. A
				  minimum of two filter units shall be installed. Provisions shall be made for
				  the control of the filtration and wash rates, for an adequate supply of
				  backwash water and for a separate filter-to-waste system for each filter.
				  Filtration rates shall not exceed 4 gpm/sf, unless approved by the
				  Department.
Author:
Joe Alan Power, Edgar K.
				  Hughes
Rule 335-7-5-.27 was renumbered .19 as per certification
					 filed November 7, 2005; effective December 12,
					 2005.
Statutory Authority:
Code of Ala.
					 1975
, §§ 22-23-1 through
					 22-24-12.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-5 - GROUNDWATER SOURCES AND TREATMENT › Section 335-7-5-.20 - Chemicals Used In Ground Water Treatment

Current through Register Vol. 42, No. 9, June 28, 2024
(1) Chemicals used in groundwater treatment,
				other than alum, lime, chlorine, potassium permanganate, caustic soda, soda
				ash, powdered activated carbon, and hydrofluosilicic acid must be approved by
				the Department prior to use. Systems currently using chemicals other than these
				and not having prior ADEM concurrence shall submit required information within
				six months of the effective date of these regulations. Information regarding
				company name, telephone number, address and chemicals supplied must be
				maintained in a file at the plant. All chemical manufacturers supplying
				chemicals to the treatment plant for the past two years shall be maintained on
				this list. Water Systems shall determine that the chemical or substance to be
				added and the proposed application rate meets the ANSI/NSF standard 60. Only
				products meeting these standards shall be used by supplier of water and
				certification that such a product meets these standards must be determined
				through evaluation by a program certified by the American National Standards
				Institute or Underwriters Laboratory. Water Systems shall provide a list of the
				type, name, and manufacturer, and certification document requesting
				departmental approval prior to use of the substance or chemical. Water
				treatment chemicals containing acrylamide or epichlorohydrin are prohibited
				from use in water treatment plants unless the system provides annually a
				written certification to the department that when acrylamide and/or
				epichlorohydrin are used to treat water, the combination of dose and monomer
				level does not exceed the following levels: acrylamide - 0.05% dosed at 1ppm or
				equivalent. Epichlorohydrin - 0.01% dosed at 20 ppm or equivalent. Name of the
				chemical used and daily average dose rate shall be shown on the monthly
				operation data report for the plant.
(2) Chemicals shall be stored in containers
				as received or otherwise their containers shall be labeled to indicate the name
				of the chemical. Chemicals shall be controlled to prevent contamination with
				other chemicals and to eliminate any dangerous mixing of chemicals. Acid
				storage tanks must be vented to the outside atmosphere in a separate vent
				stack.
Author:
Joe Alan Power, Edgar K.
				  Hughes
Rule 335-7-5-.28 was renumbered .20 as per certification
					 filed November 7, 2005; effective December 12,
					 2005.
Statutory Authority:
Code of Ala.
					 1975
, §§ 22-23-1 through
					 22-24-12.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-5 - GROUNDWATER SOURCES AND TREATMENT › Section 335-7-5-.21 - Additional Requirements For Ground Water Under The Influence Of Surface Water

Current through Register Vol. 42, No. 9, June 28, 2024
Systems deemed ground water under the influence of surface
				  water must meet the requirements established in 335-7-6.
Author:
William D. McClimans, Edgar K.
				  Hughes
Rule 335-7-5-.29 was renumbered .21 as per certification
					 filed November 7, 2005; effective December 12,
					 2005.
Statutory Authority:
Code of Ala.
					 1975
, §§
											22-23-33,
					 22-23-49,
					 22-22A-5,
					 22-22A-6.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-5 - GROUNDWATER SOURCES AND TREATMENT › Section 335-7-5-.23 - New Groundwater Facilities

Current through Register Vol. 42, No. 9, June 28, 2024
(1) Wells, treatment facilities, pumping
				stations and tanks permitted as of January 1, 2012 must meet the following
				requirements:
(a) Have a lockable fence that
				is of sufficient size and height as to deter entry of unauthorized
				persons;
(b) Have an enclosure(s)
				for wells, treatment facilities and pumping stations that is (are) lockable to
				deter entry of unauthorized personnel and of sufficient size to allow for
				proper maintenance, and,
(c) Be
				equipped with auxiliary power capacity capable of operating the essential
				equipment at each facility or have the ability to connect a portable generator
				capable of operating the essential equipment.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.02 - Applicability

Current through Register Vol. 42, No. 9, June 28, 2024
These regulations apply to all public water systems using or
				  proposing to utilize a surface water or ground water under the influence of
				  surface water source as a supply of drinking water.
Authors:
Joe Alan Power, Edgar K.
				  Hughes
Statutory Authority:
Code of Ala.
					 1975
, §§
											22-23-33,
					 22-23-49,
					 22-22A-5,
					 22-22A-6.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.03 - Source Selection Report

Current through Register Vol. 42, No. 9, June 28, 2024
Any applicant for a permit proposing to utilize surface water
				  or groundwater under the influence of surface water as a source for a drinking
				  water treatment plant shall file a report in electronic format, unless paper
				  format is approved by the Department in advance, including the
				  following:
(a) A map of the proposed
				source showing the drainage area in the vicinity of the proposed
				intake.
(b) Information showing the
				raw water source meets raw water quality criteria and has a use classification
				of public water supply in accordance with ADEM Admin. Code chapter
				335-6-11.
(c) The system must
				provide verification that the source has adequate capacity at all times, even
				during drought years, to meet the proposed capacity of the water treatment
				plant.
(d) An approved source water
				assessment meeting the requirements of ADEM Admin. Code r. 335-7-15.
(e) Twelve months of raw water data,
				including the following:
1. weekly results of
				turbidity, temperature, pH, alkalinity, iron, manganese and color,
2. monthly results for total coliform and e.
				coli bacteria,
3. quarterly
				analysis results from a certified laboratory for all contaminants identified in
				the primary and secondary standards and any listed unregulated
				contaminants,
4. quarterly analysis
				indicating the potential maximum TTHM and HAA5 levels, and
5. monthly analyses of the TOC levels,
Cryptosporidium
and
Giardia
.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.04 - Treatment Requirements

Current through Register Vol. 42, No. 9, June 28, 2024
The treatment provided for all surface water and ground water
				  under the influence of surface water must meet the following
				  requirements:
(a) Conventional surface
				water treatment shall be required at all surface water or ground water under
				the influence of surface water treatment facilities, unless otherwise approved
				by the Department.
(b) Provisions
				to bypass various processes in the treatment are prohibited, unless approved by
				the Department.
(c) Treatment
				provided shall produce water meeting both primary and secondary standards with
				a goal for particulate removal to result in a clarified water turbidity less
				than 2.0 NTU when the raw water turbidity level is greater than 10.0 NTU, a
				clarified water turbidity level less than 1.0 NTU when the raw water turbidity
				level is less than or equal to 10.0 NTU and a filtered water turbidity level
				less than 0.10 NTU, and be free of Giardia lamblia, Cryptosporidium oocysts,
				viruses, heterotrophic plate count bacteria, and Legionella.
(d) No exemptions from the filtration and
				disinfection processes are allowed.
(e) The treatment requirements consist of
				installing and properly operating water treatment processes which achieve the
				following:
1. At least 99.9 percent removal
				and/or inactivation of
Giardia lamblia
cyst and at least 99
				percent removal of Cryptosporidium oocyst prior to service of the first
				customer, and
2. 99.99 percent
				removal and/or inactivation of viruses prior to service of the first
				customer.
3. Drinking water meeting
				all primary and secondary standards.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.05 - Surface Water Intake Structures

Current through Register Vol. 42, No. 9, June 28, 2024
All surface water intake structures that are permitted for
				  construction after December 31, 2 005 must meet the following requirements,
				  unless a waiver is granted by the Department:
(a) Provide for the withdrawal of water from
				more than one level unless written approval is obtained from the
				Department.
(b) All motors and
				electrical controls must be located above grade and the 100 yearflood level
				except when submersible pumps are approved by the Department.
(c) Structures must be equipped with
				removable or traveling screens before the pump suction well or equipped with
				other means for clearing the screens.
(d) A minimum of two pumps sized to meet the
				treatment plant design capacity are required. Intakes with more than two pumps
				must be able to meet the treatment plant design capacity with the largest pump
				out of service.
(e) Incorporate
				into the design provisions for preventing surge or water hammer damage when
				necessary.
(f) Equip discharge
				piping from the raw water pumping station with a device capable of measuring
				and totaling the flow.
(g) Provide
				ample space in the interior of the raw water pumping station for adequate
				maintenance.
(h) Structures should
				have adequate lighting to provide for the necessary observation of equipment
				operation.
Author:
Edgar K. Hughes
Statutory Authority:
Code of Ala.
					 1975
, §§
											22-23-33,
					 22-23-49,
					 22-22A-5,
					 22-22A-6.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.06 - Conventional Treatment Processes

Current through Register Vol. 42, No. 9, June 28, 2024
All surface water and ground water under the influence of
				  surface water treatment plants utilizing a conventional treatment process must
				  meet the following requirements:
(a)
				Existing facilities (facilities constructed or permitted for construction prior
				to January 1, 2006) may obtain a waiver from these regulations for any portion
				that they currently do not comply with. Existing facilities modified after this
				date must include provisions to address these regulations.
(b) Mixing Basins: Provision shall be made
				for the rapid disbursement of coagulants in the raw water and the development
				of a floc according to the following:
1. A
				minimum of two mixing units shall be provided when mechanical mixers are used.
				Hydraulic mixing is permitted with prior approval from the
				Department.
2. Provision shall be
				made for the application of chemicals at various points in the treatment
				train.
3. A minimum detention time
				of 30 minutes shall be provided under normal flow conditions in the
				flocculation basin. The plant must demonstrate a minimum of sixty percent
				detention time before requesting authorization to place the water treatment
				plant into service.
4. A minimum of
				two multi-stage flocculation units is required.
5. Each flocculation unit shall be equipped
				with variable speed drive unless hydraulic flocculation is utilized.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.07 - Alternative Treatment Processes

Current through Register Vol. 42, No. 9, June 28, 2024
All surface water and ground water under the influence of
				  surface water treatment plants utilizing anything other than conventional
				  treatment processes must meet the following requirements:
(a) Existing facilities (facilities
				constructed or permitted for construction prior to January 1, 2006) may obtain
				a waiver from these regulations for any portion that they currently do not
				comply with. Existing facilities modified after this date must include
				provisions to address these regulations.
(b) The minimum treatment processes required
				are mixing, clarification, conventional filtration and disinfection. Any
				deviation must have written Departmental approval.
(c) A pilot study is required to demonstrate
				the effectiveness of the process to achieve the required log removals of
Giardia lamblia
cyst,
Cryptosporidium
oocysts, and viruses as specified in rule
				335-7-6-.04(e)
				on the proposed raw water source. The duration of the pilot study must be a
				minimum of 30 consecutive days. The pilot study shall be conducted during a
				time when raw water turbidity is historically at its highest. A report on the
				pilot study must be submitted to the Department and approval obtained prior to
				the submittal of an application for a permit to construct.
(d) The Department will determine minimum
				design requirements for each individual treatment technology as they are
				proposed. These design requirements will be based on manufacturer
				recommendations and/or the results of the pilot study for the proposed
				treatment technology.
Authors:
Edgar K. Hughes, Dennis D.
					 Harrison
Statutory Authority:
Code of Ala.
					 1975
, §§
											22-23-33,
					 22-23-49,
					 22-22A-5,
					 22-22A-6.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.08 - Membrane Filtration

Current through Register Vol. 42, No. 9, June 28, 2024
Membrane filtration units may be used in place of
				  conventional filtration. Membrane filtration units must meet the following
				  requirements:
(a) A pilot study may be
				required to demonstrate the effectiveness of membrane filtration to achieve the
				required log removals of
Giardia lamblia
cyst,
Cryptosporidium
oocysts, and viruses a specified in rule
				335-7-6-.04(e)
				on the proposed raw water source. The duration of the pilot study must be a
				minimum of 30 consecutive days. The pilot study shall be conducted during a
				time when raw water turbidity is historically high. A report on the pilot study
				must be submitted to the Department and approval obtained prior to the
				submittal of a construction application permit.
(b) Maximum flow rates through membrane
				filtration units will be determined based on the lowest historical water
				temperature for the raw water source.
(c) A minimum of two membrane filtration
				units is required.
(d) Each
				membrane train shall have a turbidimeter and an instrument capable of measuring
				particles less than 3 micrometers installed on the effluent side of the
				train.
Authors:
Edgar K. Hughes, Dennis D.
					 Harrison
Statutory Authority:
Code of Ala.
					 1975
, §§
											22-23-33,
					 22-23-49,
					 22-22A-5,
					 22-22A-6.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.09 - High Rate Filtration Requirements

Current through Register Vol. 42, No. 9, June 28, 2024
Filtration rates for conventional filters greater than two
				  gpm per square foot of filter area require a permit modification. For high rate
				  filtration approval, the following requirements must be met prior to the system
				  requesting a permit modification:
(a)
				The duration of the High Rate Study must be a minimum of 30 consecutive days
				and during a time when raw water turbidity is historically at its highest. The
				plant must be operated 24 hours per day for the duration of the
				study.
(b) All treatment units must
				be utilized for the entire duration of the High Rate Study and operated at the
				proposed capacity. Any deviation from this requirement requires Departmental
				approval.
(c) The coagulation
				process shall be controlled either by zeta potential, streaming current
				detector or other approved methods.
(d) Indicating and recording turbidity
				monitors shall be provided for monitoring the turbidity of:
1. Raw water;
2. Clarified water prior to filtration at
				representative points;
3. Filter
				effluent from each filter.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.10 - Disinfection

Current through Register Vol. 42, No. 9, June 28, 2024
(1) A disinfectant
				application rate must be provided to all filtered water to provide at least a
				one log Giardia lamblia cyst and a two log virus inactivation. This shall be
				demonstrated by providing a suitable contact time with a primary disinfectant.
				The acceptable primary disinfectants are chlorine, chlorine dioxide and
				Ultraviolet Light (UV). Chlorine is the preferred primary disinfectant.
				Chloramines may not be used as a primary disinfectant.
(a) Should chlorine be used as the primary
				disinfectant, a CT of at least 70 must be available or the system must
				demonstrate that a CT acceptable to the Department corresponding to the water
				characteristics and detention is available, but the chlorine residual entering
				the distribution system from each plant shall not be less than the level
				included on the facility's operating permit or less than 1.0 mg/L at any
				time.
(b) Approval from the
				Department must be obtained before using any disinfectant other than chlorine.
				Duplicate equipment may be required. A minimum CT for the disinfectant shall be
				provided in accordance with Departmental calculations and EPA
				guidance.
(c) Systems utilizing a
				primary disinfectant other than chlorine must add a secondary disinfectant to
				maintain disinfectant residuals in the distribution system. Acceptable
				secondary disinfectants are chlorine and/or chloramines. Chlorine is the
				preferred secondary disinfectant. If chlorine is used as a secondary
				disinfectant the minimum residual entering the distribution system from each
				treatment plant shall not be less than 1.0 mg/l at any time. Chloramines may be
				used as a secondary disinfectant only with written Departmental approval. The
				minimum chloramines residual entering the distribution system from each plant
				shall not be less than 2.0 mg/L at any time. Systems utilizing chloramines as a
				secondary disinfectant must revert to initial lead and copper monitoring as
				outlined in 335-7-11 for a minimum of three years.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.11 - Disinfection Profiling And Benchmarking

Current through Register Vol. 42, No. 9, June 28, 2024
(1) Systems must conduct disinfection
				profiling for all surface water sources and sources that have been designated
				as ground water under the influence of surface water that does not comply with
				one of the following must conduct disinfection profiling for up to three years
				beginning not later than March 16, 2000.
(a)
				The water system has conducted simultaneous monitoring of water in the
				distribution system for HAA5 and TTHM that meets the monitoring sample number
				and location requirements for TTHM. The arithmetic average of all results for
				the last four quarters of monitoring completed by March 16, 1999 is not greater
				than .064 mg/L for TTHM and not greater than .048 mg/L for HAA5.
(b) The water system has conducted monitoring
				in accordance with the Information Collection Rule (ICR) and the arithmetic
				average of all results for the last four quarters of monitoring for TTHM is not
				greater than .064 mg/L and monitoring for HAA5 is not greater than .048
				mg/L.
(c) The water system confirms
				a minimum CT using chlorine of no less than 70 is available between the filter
				effluent and the first customer and submits graphs of filtered water turbidity
				and probability profiles that demonstrate that the maximum turbidity of water
				each day from each water treatment plant filter determined every fifteen
				minutes for the last 12 consecutive months is no greater than 0.1 NTU in 95% of
				all samples analyzed and no individual turbidity determined on water from any
				filter exceeds 0.3 NTU.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.12 - Chemicals Used In Water Treatment

Current through Register Vol. 42, No. 9, June 28, 2024
(1) Chemicals used in water treatment must be
				approved by the Department prior to use. Water Systems shall determine that the
				chemical or substance to be added and the proposed application rate meets the
				ANSI/NSF standard 60 or 61. Only products meeting these standards shall be used
				by supplier of water and certification that such a product meets these
				standards must be determined through evaluation by a program certified by the
				American National Standards Institute. Water Systems shall provide a list of
				the type, name, and manufacturer, and certification document requesting
				departmental approval prior to use of the substance or chemical. Water
				treatment chemicals containing acrylamide or epichlorohydrin are prohibited
				from use in water treatment plants unless the system provides annually a
				written certification to the department that when acrylamide and/or
				epichlorohydrin are used to treat water, the combination of dose and monomer
				level does not exceed the following levels: acrylamide - 0.05% dosed at 1ppm or
				equivalent. Epichlorohydrin - 0.01% dosed at 20 ppm or equivalent.
(2) Chemicals shall be stored in packages or
				containers as received or otherwise their containers shall be labeled to
				indicate the name of the chemical. Acid storage tanks must be vented to the
				outside atmosphere in a separate vent stack.
(3) Chemicals shall be controlled to prevent
				contamination with other chemicals and to eliminate any dangerous mixing of
				chemicals.
Author:
Edgar K. Hughes
Rule
					 335-7-6-.19 was previously Rule
					 335-7-6-.18 per certification
					 filed May 2, 2000; effective June 6,
					 2000.
Statutory Authority:
Code of Ala.
					 1975
, §§
											22-23-33,
					 22-23-49,
					 22-22A-5,
					 22-22A-6.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.13 - Treatment Process Equipment

Current through Register Vol. 42, No. 9, June 28, 2024
(1)
				Existing treatment plants must comply with these requirements by December 31,
				2007.
(2) Where a treatment process
				is necessary for the production of safe drinking water, such as chlorination or
				coagulation, a minimum of two sets of chemical feeders shall be provided. A
				standby unit or combination of units of sufficient capacity shall be made
				available to replace the largest unit during shutdowns. The capacity and design
				must comply with the following:
(a) Feeders
				shall be able to deliver the necessary amounts of treatment chemical accurately
				at all times.
(b) Feeders must be
				designed to prevent treatment chemicals from being siphoned into the water
				supply.
(c) Service water supply
				lines must be equipped with backflow prevention devices or an air gap must be
				provided between the supply line and solution tank.
(d) Feeders and supply lines must be
				resistant to the aggressiveness of the chemical solution.
(e) A means for calibration of the amount of
				chemical being fed should be available for each individual chemical
				feeder.
(f) Chlorine feed systems
				must be capable of accurately determining the amount of chemical being fed at
				each individual point of application.
Author:
Edgar K. Hughes
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.14 - Enhanced Coagulation

Current through Register Vol. 42, No. 9, June 28, 2024
Systems using surface water or groundwater under the direct
				  influence of surface water shall operate with enhanced coagulation to achieve
				  the TOC percent removal levels specified in this section unless the system
				  meets at least one of the alternative compliance criteria listed below.
(a) Systems that meet any of the following
				criteria do not have to demonstrate that the system has achieved TOC removal
				percentages in this section.
1. The system's
				raw water TOC running annual average, calculated quarterly, is less than 2.0
				mg/L.
2. The system's treated water
				TOC running annual average, calculated quarterly, is less than 2.0
				mg/L.
3. The treatment plant's raw
				water TOC annual average, calculated quarterly, is less than 4.0 mg/L, the raw
				water alkalinity annual average, calculated quarterly, is greater than 60 mg/L
				(as CaCO3), and either the TTHM and HAA5 annual averages for the treatment
				plant's sample sites are no greater than 0.040 mg/L and 0.030 mg/L,
				respectively; or prior to January 1, 2001, the system has made a clear and
				irrevocable financial commitment not later than January 1, 2001 to use
				technologies that will limit the levels of TTHMs and HAA5 to no more than 0.040
				mg/L and 0.030 mg/L, respectively. The water system must submit evidence of a
				clear and irrevocable financial commitment, in addition to a schedule
				containing milestones and periodic progress reports for installation and
				operation of appropriate technologies, to the Department for approval not later
				than January 1, 2001. These technologies must be installed and operating not
				later than June 30, 2005. Failure to install and operate these technologies by
				the date in the approved schedule will constitute a violation.
4. The system's TTHM and HAA5 annual averages
				are no greater than 0.040 mg/L and 0.030 mg/L, respectively, and the system
				uses only chlorine for primary disinfection and maintenance of a residual in
				the distribution system.
5. The
				treatment plant's raw water SUVA annual average, measured monthly and
				calculated quarterly, is less than or equal to 2.0 L/mg-m.
6. The treatment plant's finished water SUVA
				annual average, measured monthly and calculated quarterly, is less than or
				equal to 2.0 L/mg-m.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.15 - Lighting And Power Requirements

Current through Register Vol. 42, No. 9, June 28, 2024
(1) Proper illumination shall be available to
				allow evaluation of treatment processes at the water treatment plant at all
				times.
(2) New community treatment
				facilities permitted for construction after December 31, 2005 shall have
				sufficient auxiliary power capacity available to operate essential equipment at
				the plant.
(3) All community
				surface water treatment facilities shall have sufficient auxiliary power
				available to operate essential equipment no later than December 31, 2010.
(a) Essential equipment includes, but is not
				limited to, raw water pumps, laboratory testing equipment, monitoring
				equipment, and high service pumps needed to meet expected customer demand for
				finished drinking water during emergency conditions.
(b) If a water system owns more than one
				water treatment facility, it can designate one facility as the primary facility
				and this facility must meet the requirements of this paragraph and be capable
				of supplying the entire distribution system during emergency
				conditions.
(c) The auxiliary power
				requirement can be met by having an on-site generator or an equivalent design
				approved by the Department.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.16 - Treatment Plant Security Requirements

Current through Register Vol. 42, No. 9, June 28, 2024
Each intake structure and treatment plant must have adequate
				  security to prevent the entrance of unauthorized personnel. As a minimum each
				  intake structure and treatment plant should have a perimeter fence and locks on
				  all exterior entrances.
Author:
Edgar K. Hughes
Statutory Authority:
Code of Ala.
					 1975
, §§
											22-23-33,
					 22-23-49,
					 22-22A-5,
					 22-22A-6.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.17 - Laboratory Facilities

Current through Register Vol. 42, No. 9, June 28, 2024
All treatment plants permitted for construction after
				  December 31, 2005 must have laboratory facilities as specified in the
				  following:
(a) General Requirements:
1. Laboratory equipment and facilities shall
				be compatible with the raw water source, intended design of the treatment
				plant, daily monitoring and the complexity of the treatment process
				involved.
2. Recognized laboratory
				procedures must be utilized and the testing equipment shall be acceptable to
				the Department.
3. Laboratory
				facilities should not be used for activities and/or purposes that are not
				pertinent to the operation of the plant or in the execution of the duties of
				the operator and/or the laboratory analyst.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.18 - Filter Backwash Recycling

Current through Register Vol. 42, No. 9, June 28, 2024
All systems that employ conventional filtration or direct
				  filtration treatment and that recycle spent filter backwash water, thickener
				  supernatant, or liquids from dewatering processes must meet the following
				  requirements:
(a) Reporting. A system
				must notify the state in writing by December 8, 2003, if the system recycles
				spent filter backwash water, thickener supernatant, or liquids from dewatering
				processes. This notification must include, at a minimum:
1. A plant schematic showing the origin of
				all recycled flows, the hydraulic conveyance used to transport them and the
				location where they are reintroduced back into the treatment plant. The
				schematic shall also show all treatment processes and all chemical addition
				points.
2. Typical recycle flow in
				gallons per minute (gpm), the highest observed plant flow experienced in the
				previous year (gpm), design flow for the treatment plant (gpm), permitted
				operating capacity for the plant.
3. Documentation proving the system can
				recycle spent filter backwash water, thickener supernatant, or liquids from
				dewatering processes and continuously produce water that meets the requirements
				of Rule 335-7-6-.04.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.19 - Cryptosporidium Treatment Requirements

Current through Register Vol. 42, No. 9, June 28, 2024
Filtered systems must provide the level of additional
				  treatment for
Cryptosporidium Treatment Requirements
specified
				  in the following table based upon their bin classification as determined under
				  rule 335-7-2-.17.
(a) Additional treatment requirement for
Cryptosporidium Treatment Requirements
based
				  upon bin classification:
Additional Treatment Requirements
							 for
Cryptosporidium
Bin classification
The system is in full compliance with
							 335-7-6 -2, then the additional treatment requirements are...
Conventional filtration treatment (including
							 softening)
Direct Filtration
Slow sand or diatomaceous earth filtration
Alternative filtration technologies
Bin 1
No additional treatment
No additional treatment
No additional treatment
No additional treatment
Bin 2
1-log treatment
1.5-log treatment
1-log treatment
(1)
Bin 3
2-log treatment
2.5-log treatment
2-log treatment
(2)
Bin 4
2.5-log treatment
3-log treatment
2.5-log treatment
(3)
(1) As
				determined by the Department such that the total
Cryptosporidium
				Treatment Requirements
removal and inactivation is at least
				4.0-log.
(2) As determined by the
				Department such that the total
Cryptosporidium Treatment
				Requirements
removal and inactivation is at least 5.0-log.
(3) As determined by the Department such that
				the total
Cryptosporidium Treatment Requirements
removal and
				inactivation is at least 5.5-log.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.20 - Cryptosporidium Treatment Requirement Schedule

Current through Register Vol. 42, No. 9, June 28, 2024
Following bin classification, systems must provide the level
				  of treatment for
Cryptosporidium Treatment Requirement
				  Schedule
required under rule
				  335-7-6-.19 according to the
				  schedule below:
(a)
Cryptosporidium Treatment Requirement Schedule
treatment
				compliance dates.
Cryptosporidium
							 Treatment
Compliance Dates
System Population
Treatment installation
							 deadlinea
At least 100,000
April 1, 2012
50,000 to 99,999
October 1, 2012
10,000 to 49,999
October 1, 2013
[Less Than] 10,000
October 1, 2014
a The Department may allow up to
				  an additional two years for complying with the treatment requirement for
				  systems making capital improvements.
(b) If the bin classification for a system
				changes following any round of source water monitoring, the system must provide
				the level of treatment for
Cryptosporidium Treatment Requirement
				Schedule
required under rule
				335-7-6-.19 on a schedule
				approved by the Department.
Author:
Dennis D. Harrison
Statutory Authority:
Code of Ala.
					 1975
, §§
											22-23-33,
					 22-23-49,
					 22-22A-5,
					 22-22A-6.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.23 - Pre-Filtration Treatment Toolbox Components

Current through Register Vol. 42, No. 9, June 28, 2024
(1) Presedimentation. Systems receive 0.5-log
Cryptosporidium
treatment credit for a presedimentation basin
				during any month the process meets the following criteria:
(a) The presedimentation basin must be in
				continuous operation and must treat the entire plant flow taken from a surface
				water or ground water under the direct influence of surface water
				source.
(b) The system must
				continuously add a coagulant to the presedimentation basin.
(c) The presedimentation basin must achieve
				the following performance criteria:
1.
				Demonstrate at least 0.5-log mean reduction in influent turbidity. This
				reduction must be determined using the daily average turbidity measurements
				taken every four hours in the presedimentation process influent and effluent
				and must be calculated as follows: log10 (monthly mean of daily influent
				turbidity) - log10 (monthly mean of daily effluent
				turbidity).
2. Comply with
				Department-approved performance criteria that demonstrate at least 0.5-log mean
				removal of micron sized particulate material through the presedimentation
				process.
Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › WATER DIVISION - WATER SUPPLY PROGRAM › Chapter 335-7-6 - SURFACE WATER SOURCES AND TREATMENT › Section 335-7-6-.24 - Treatment Performance Toolbox Components

Current through Register Vol. 42, No. 9, June 28, 2024
(1) Combined filter performance. Systems
				using conventional filtration treatment or direct filtration treatment receive
				an additional 0.5-log
Cryptosporidium
treatment credit during
				any month the system meets the criteria in this paragraph. Combined filter
				effluent (CFE) turbidity must be less than or equal to 0.15 NTU in at least 95
				percent of the measurements. Turbidity must be measured using an EPA approved
				method and must be measured every 15 minutes that the water treatment plant is
				in operation.
(2) Individual filter
				performance. Systems using conventional filtration treatment or direct
				filtration treatment receive 0.5-log
Cryptosporidium
treatment
				credit, which can be in addition to the 0.5-log credit under paragraph (1) of
				this section, during any month the system meets the criteria in this paragraph.
				Compliance with these criteria must be based on individual filter turbidity
				monitoring as described in rule
				335-7-2-.06.
(a) The filtered water turbidity for each
				individual filter must be less than or equal to 0.15 NTU in at least 95 percent
				of the measurements recorded each month.
(b) No individual filter may have a measured
				turbidity greater than 0.3 NTU in two consecutive measurements taken 15 minutes
				apart.
(c) Any system that has
				received treatment credit for individual filter performance and fails to meet
				the requirements of subparagraph (2)(a) or (b) of this rule during any month
				does not receive a treatment technique violation under rule
				335-7-2-.06 if the Department
				determines the following:
1. The failure was
				due to unusual and short-term circumstances that could not reasonably be
				prevented through optimizing treatment plant design, operation, and
				maintenance.
2. The system has
				experienced no more than two such failures in any twelve month
				period.
3. Any system that that has
				two such failures in any 12 month period must complete a self assessment
				according to EPA's handbook: Optimizing Water Treatment Plant Performance Using
				the Composite Correction Program or as specified by the Department. The report
				must be submitted to the Department within 90 days of the second
				occurrence.