Florida Administrative Code › 62 - DEPARTMENT OF ENVIRONMENTAL PROTECTION › 62 - Departmental › Chapter 62-550 - DRINKING WATER STANDARDS, MONITORING, AND REPORTING › Section 62-550.550 - Certified Laboratories and Analytical Methods for Public Water Systems

Current through Reg. 50, No. 138; July 16, 2024
(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 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, 2014, edition of
				40 C.F.R. §§
										141.21,
				141.23,
				141.24,
				141.25,
				141.27,
				141.74,
				141.89,
				141.131,
				141.402,
				141.704,
				141.852, and
				143.4 and Appendix A to  40 C.F.R.
				Part 141, Subpart C (
http://www.flrules.org/Gateway/reference.asp?No=Ref-05592
),
				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. This subsection shall be effective on July 7, 2015.
(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, DEP-SOP-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
				subsection  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.
(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.