The Department is adopting the federal Stage 2 Disinfectants and Disinfection Byproducts Rule (Stage 2 D/DBPR) – including new definitions in 40 CFR 141.2; minor revisions and additions to record maintenance requirements in 40 CFR 141.33; revisions ...

 

DEPARTMENT OF ENVIRONMENTAL PROTECTION

RULE NO: RULE TITLE
62-550.200: Definitions for Public Water Systems
62-550.310: Primary Drinking Water Standards: Maximum Contaminant Levels and Maximum Residual Disinfectant Levels
62-550.500: General Monitoring and Compliance Measurement Requirements for Contaminants and Disinfectant Residuals
62-550.514: Disinfectant Residuals and Disinfection Byproducts Monitoring Requirements
62-550.540: Monitoring of Consecutive Public Water Systems
62-550.550: Certified Laboratories and Analytical Methods for Public Water Systems
62-550.720: Recordkeeping
62-550.730: Reporting Requirements for Public Water Systems
62-550.821: Disinfectant Residuals, Disinfection Byproducts, and Disinfection Byproduct Precursors
62-550.822: Initial Distribution System Evaluations and Stage 2 Disinfection Byproducts Requirements
62-550.824: Consumer Confidence Reports
PURPOSE, EFFECT AND SUMMARY: The Department is adopting the federal Stage 2 Disinfectants and Disinfection Byproducts Rule (Stage 2 D/DBPR) – including new definitions in 40 CFR 141.2; minor revisions and additions to record maintenance requirements in 40 CFR 141.33; revisions to the maximum contaminant levels (MCLs) for disinfection byproducts; revisions to the Stage 1 D/DBPR requirements in 40 CFR 141, Subpart L; and revisions to the consumer confidence report requirements in 40 CFR 141, Subpart O – and is adopting federal revisions to drinking water analytical methods in 40 CFR 141. The Department also is making, where necessary, clarifications pertaining to the federal Stage 2 D/DBPR and the federal revisions to drinking water analytical methods. Rule 62-550.200, F.A.C., is being amended to incorporate the new Stage 2 D/DBPR definitions in 40 CFR 141.2. Rule 62-550.310, F.A.C., is being amended to expand the applicability of the chlorine and chloramine maximum residual disinfectant levels (MRDLs) in accordance with the Stage 2 D/DBPR; to clarify that the Stage 1 D/DBPR MCLs for total trihalomethanes (TTHM) and haloacetic acids five (HAA5) apply until the date specified for compliance with the Stage 2 D/DBPR MCLs for TTHM and HAA5; and to specify the Stage 2 D/DBPR MCLs for TTHM and HAA5, the water systems to which these MCLs apply, and the effective dates for these MCLs. Rule 62-550.500, F.A.C., is being amended to clarify that the monitoring and compliance measurement requirements in the Stage 2 D/DBPR take precedence over the general monitoring and compliance measurement requirements in Rule 62-550.500, F.A.C.,. Rule 62-550.514, F.A.C., is being amended to expand the applicability of the chlorine and chloramine monitoring requirements in accordance with the Stage 2 D/DBPR and to clarify who must monitor, and when, for bromate, chlorite, TTHM, and HAA5 under the Stage 1 and/or Stage 2 D/DBPRs. Rule 62-550.540, F.A.C., is being amended to expand the applicability of the chlorine and chloramine monitoring requirements in accordance with the Stage 2 D/DBPR and to clarify Stage 2 D/DBPR disinfection byproduct monitoring requirements for consecutive systems. Rule 62-550.550, F.A.C., is being amended to update references to federal drinking water analytical methods and to clarify that ITS free chlorine test strips are approved for use in the determination of free chlorine. Rule 62-550.720, F.A.C., is being amended to incorporate the Stage 2 D/DBPR revisions and additions to record maintenance requirements in 40 CFR 141.33. Rule 62-550.730, F.A.C., is being amended to add a reference to the reporting format for Stage 2 D/DBPR disinfection byproduct monitoring results. Rule 62-550.821, F.A.C., is being revised to incorporate the Stage 2 D/DBPR revisions to the Stage 1 D/DBPR requirements in 40 CFR 141, Subpart L, and to make a minor technical correction. Rule 62-550.822, F.A.C., is being added to adopt the federal Stage 2 D/DBPR and provide clarification where necessary. Rule 62-550.824, F.A.C., is being amended to incorporate the Stage 2 D/DBPR revisions to the consumer confidence report requirements in 40 CFR 141, Subpart O. Table 3 is being revised to add the Stage 2 D/DBPR MCLs for TTHM and HAA5. Tables 7 and 8 are being revised to incorporate Stage 2 D/DBPR information and to make minor technical corrections.
SPECIFIC AUTHORITY: 403.853(3), 403.861(9) FS.
LAW IMPLEMENTED: 403.0877, 403.852(12), (13), 403.853, (1), (3), (4), (7), 403.854, 403.859(1), 403.861(9), (16), (17), 403.8615, 403.862 FS.
THIS RULEMAKING IS UNDERTAKEN PURSUANT TO SECTION
403.8055, F.S. WRITTEN COMMENTS MAY BE SUBMITTED WITHIN 21 DAYS OF THE DATE OF THIS NOTICE TO: Virginia Harmon, Department of Environmental Protection, 2600 Blair Stone Road, M.S. 3520, Tallahassee, Florida 32399-2400, [e-mail]
SUBSTANTIALLY AFFECTED PERSONS MAY WITHIN 14 DAYS OF THE DATE OF THIS NOTICE, FILE AN OBJECTION TO THIS RULEMAKING WITH THE AGENCY. THE OBJECTION SHALL SPECIFY THE PORTIONS OF THE PROPOSED RULE TO WHICH THE PERSON OBJECTS AND THE SPECIFIC REASONS FOR THE OBJECTION.

THE FULL TEXT OF THE PROPOSED RULE IS:

DRINKING WATER STANDARDS, MONITORING, AND REPORTING

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) through (10) No change.

(11) “COMBINED DISTRIBUTION SYSTEM” means the interconnected distribution system consisting of the distribution systems of wholesale systems and of the consecutive systems that receive finished water.

(11) through (17) renumbered (12) through (18) No change.

(19)(18) “CONSECUTIVE SYSTEM” means a public water system that buys or otherwise receives some or all of its finished water from one or more wholesale other public water systems at least 60 days per year. Delivery may be through a direct connection or through the distribution system of one or more consecutive systems. A consecutive system is either a “community water system” or a “non-community water system.”

(19) through (32) renumbered (20) through (33) No change.

(34) “DUAL SAMPLE SET” means a set of two samples collected at the same time and same location, with one sample analyzed for TTHM and the other sample analyzed for HAA5. Dual sample sets are collected for the purpose of conducting an IDSE under subpart U of 40 CFR 141 as incorporated into Rule 62-550.822, F.A.C., and for the purpose of determining compliance with the TTHM and HAA5 MCLs under subpart V of 40 CFR 141 as incorporated into Rule 62-550.822, F.A.C.

(33) through (38) renumbered (35) through (40) No change.

(41) “FINISHED WATER” means water that is introduced into the distribution system of a public water system and is intended for distribution and consumption without further treatment, except treatment as necessary to maintain water quality in the distribution system (e.g., booster disinfection or addition of corrosion control chemicals).

(39) through (40) renumbered (42) through (43) No change.

(44)(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, except that the reactivation frequency for GAC10 used as a best available technology for compliance with Stage 2 MCLs under paragraph 62-550.310(3)(d), F.A.C., shall be 120 days.

(45) “GAC20” means granular activated carbon filter beds with an empty-bed contact time of 20 minutes based on average daily flow and a carbon reactivation frequency of every 240 days.

(42) through (54) renumbered (46) through (58) No change.

(59) “LOCATIONAL RUNNING ANNUAL AVERAGE” (LRAA) means the average of sample analytical results for samples taken at a particular monitoring location during the previous four calendar quarters.

(55) through (104) renumbered (60) through (109) No change.

(110)(105) “WHOLESALE SYSTEM” means a public water system that treats source water as necessary to produce finished water and then sells or otherwise delivers some or all of that finished water to another public water system at least 60 days per year. Delivery may be through a direct connection or through the distribution system of one or more consecutive systems. A wholesale system that delivers water to a community water system is considered a community water system.

Rulemaking 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,__________.

 

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) No change.

(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 non-transient 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 at the end of this chapter. These MRDLs apply to the public water systems referenced below.

(a) The chlorine dioxide MRDL applies to all public water systems that add chlorine dioxide as a disinfectant or oxidant.

(b) The chlorine and chloramine MRDLs apply to all community or non-transient non-community water systems that add chlorine or chloramines to the water in any part of the drinking water treatment process.

(c) Effective _______[insert the effective date of these rule amendments], the chlorine and chloramine MRDLs apply to all consecutive community or consecutive non-transient non-community water systems that do not add chlorine or chloramines but deliver water that has been treated with chlorine or chloramines.

(3) DISINFECTION 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 The disinfection byproduct maximum contaminant levels (MCLs) are listed in Table 3, which is incorporated herein and appears at the end of this chapter. These MCLs apply to the public water systems referenced below.

(a) The bromate MCL applies to community or non-transient non-community water systems that add ozone.

(b) The chlorite MCL applies to community or non-transient non-community water systems that add chlorine dioxide.

(c) The Stage 1 total trihalomethanes (TTHM) and haloacetic acids five (HAA5) MCLs apply to community or non-transient non-community water systems that add a chemical disinfectant to the water in any part of the drinking water treatment process. These Stage 1 MCLs apply until the appropriate date specified for Stage 2 compliance in paragraph (d) below.

(d) The Stage 2 TTHM and HAA5 MCLs apply to community or non-transient non-community water systems that use a primary or residual disinfectant other than ultraviolet light or deliver water that has been treated with a primary or residual disinfectant other than ultraviolet light. These Stage 2 MCLs apply beginning on the dates shown in the table below.

SYSTEM TYPE	COMPLIANCE DATE
SYSTEMS THAT ARE NOT PART OF A COMBINED DISTRIBUTION SYSTEM AND SYSTEMS THAT SERVE THE LARGEST POPULATION IN A COMBINED DISTRIBUTION SYSTEM
System serving 100,000 or more people	April 1, 2012
System serving 50,000 - 99,999 people	October 1, 2012
System serving 10,000 - 49,999 people	October 1, 2013
Ground water system serving less than 10,000 people or Subpart H system not treating any surface water source and serving less than 10,000 people	October 1, 2013
Subpart H system treating a surface water source and serving less than 10,000 people	October 1, 2013, if no Cryptosporidium monitoring is required under 40 CFR 141.701(a)(4) or October 1, 2014, if Cryptosporidium monitoring is required under 40 CFR 141.701(a)(4)
OTHER SYSTEMS THAT ARE PART OF A COMBINED DISTRIBUTION SYSTEM
Consecutive system or wholesale system	At the same time as the system with the earliest compliance date in the combined distribution system

(4) through (6) No change.

Rulemaking 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,________.

 

62-550.500 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 Rules 62-550.821 and 62-550.822, F.A.C.

(1) through (11) No change.

Rulemaking 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,________.

 

62-550.514 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 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. Also, effective _____[insert the effective date of these rule amendments], consecutive community or consecutive non-transient non-community water systems that do not add chlorine or chloramines but that deliver water that has been treated with chlorine or chloramines shall monitor for chlorine or chloramines 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 maximum residual disinfectant levels specified in subsection 62-550.310(2), F.A.C., for chlorine or chloramines.

(b) No change.

(2) DISINFECTION BYPRODUCTS. Community or non-transient non-community water systems that add ozone or chlorine dioxide shall monitor for bromate or chlorite, respectively, in accordance with 40 CFR 141, Subpart L, as adopted and modified under Rule 62-550.821, F.A.C. Community or non-transient non-community water systems that add a chemical disinfectant to the water in any part of the drinking water treatment process shall monitor for total trihalomethanes (TTHM) and haloacetic acids (five) (HAA5) until the dates in paragraph 62-550.310(3)(d), F.A.C., in accordance with 40 CFR 141, Subpart L, as adopted and modified under Rule 62-550.821, F.A.C. Community or non-transient non-community water systems that add a primary or residual disinfectant other than ultraviolet light or deliver water that has been treated with a primary or residual disinfectant other than ultraviolet light shall monitor for TTHM and HAA5 starting on the dates in paragraph 62-550.310(3)(d), F.A.C., in accordance with 40 CFR 141, Subpart V, as adopted and modified under Rule 62-550.822 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.

Rulemaking 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,________.

 

62-550.540 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.; shall conduct disinfection byproduct monitoring in accordance with subsection 62-550.514(2) and Rules 62-550.821 and 62-550.822, F.A.C.; shall conduct residual disinfectant monitoring in accordance with subsection 62-550.514(1) and 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.; 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) through (5) No change.

Rulemaking 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 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, 2009 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 Appendix A to 40 CFR 141, subpart C, and in the Federal Register, Vol. 74 72, Number 147 (47), August 3, 2009 March 12, 2007, pp. 38348-38358 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. The use of the Industrial Test Systems (ITS) free chlorine test strips for the determination of free chlorine is approved.

(2) Measurements for residual disinfectant to demonstrate that TTHM and HAA5 samples were taken under normal operating conditions (see subsections 62-550.821(4) and 62-550.822(19), 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) through (4) No change.

Rulemaking 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,________.

 

62-550.720 Recordkeeping.

Suppliers of water shall retain on their premises, or at a convenient location near their premises, the following records:

(1) Records of microbiological analyses and turbidity bacteriological analyses made under this chapter shall be kept for not less than 5 five years. Records of physical, chemical analyses, or and 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) through (6) No change.

(7) Unless specified elsewhere in this chapter, copies of monitoring plans developed pursuant to this chapter shall be kept for the same period of time as the records of analyses taken under the monitoring plan are required to be kept under subsection 62-550.720(1), F.A.C.

Rulemaking 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) through (2) No change.

(3) Additional Reporting Formats for Disinfectant Residuals, Disinfection Byproducts, and Disinfection Byproduct Precursors and Enhanced Coagulation or Enhanced Softening. See subsections 62-550.821(12) and 62-550.822(18), F.A.C.

(4) No change.

Rulemaking 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,________.

 

62-550.821 Disinfectant Residuals, Disinfection Byproducts, and Disinfection Byproduct Precursors: Stage 1.

The requirements contained in the July 1, 2009 2003, edition of 40 CFR 141, subpart L (sections 141.130 through 141.135), and the revisions to 40 CFR 141, subpart L, 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, 141.32(e)(78), 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 subsection 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) or 141.74(c)(3)(i) shall be interpreted to mean subsection 62-550.817(10) 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.; references to subpart U or V shall be interpreted to mean Rule 62-550.822, 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) through (5) No change.

(6) 40 CFR 141.132(b)(1)(vi)(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)(v)(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 (4) consecutive quarters.

(7) through (11) No change.

(12) This subsection replaces 40 CFR 141.134 and discusses reporting requirements for disinfectant residuals, disinfection byproducts, and disinfection byproduct precursors.

(a) through (c) No change.

(d) Subpart H systems using conventional filtration treatment shall report a summary of results of measurements for disinfection byproduct precursors and enhanced coagulation or softening shall be submitted in a format including all of the following information:

1. through 3. No change.

(13) through (17) No change.

Rulemaking 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,________.

 

62-550.822 Initial Distribution System Evaluations and Stage 2 Disinfection Byproducts Requirements.

The requirements contained in the July 1, 2009, edition of 40 CFR 141, subpart U (sections 141.600 through 141.605), and 40 CFR 141, subpart V (sections 141.620 through 141.629), 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, subparts U and V.

(1) In 40 CFR 141, subparts U and V, the term “State” shall mean “Department.”Also, references to section 141.33 shall be interpreted to mean Rule 62-550.720, F.A.C.; references to section 141.64(b)(2) shall be interpreted to mean subsection 62-550.310(3), F.A.C.; references to section 141.131, 141.131(c), 141.132, 141.132(b)(1), 141.132(b)(1)(iii), 141.132(c)(1), 141.132(d), 141.132(f), 141.133(c)(1), or 141.134(c) shall be interpreted to mean the section as adopted and modified in Rule 62-550.821, F.A.C.; and references to subpart L shall be interpreted to mean Rule 62-550.821, F.A.C.

(2) For purposes of schedule determination, compliance dates, and monitoring requirements under 40 CFR 141.600(c)(1), 141.620(c)(1) through (5), 40 CFR 141.621(a)(2), and 40 CFR 141.623(a):

(a) The number of persons served by a wholesale system includes only the number of persons served directly by the wholesale system and not the 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) This subsection replaces 40 CFR 141.600(c)(2) and 40 CFR 141.620(c)(8). Emergency-only interconnections between wholesale systems and consecutive systems shall not be considered interconnections between systems for the purpose of the combined distribution system definition in subsection 62-550.200(11), F.A.C. All other interconnections shall be used to determine whether systems meet the combined distribution system definition in subsection 62-550.200(11), F.A.C.

(4) Under 40 CFR 141.601(c)(1) and 40 CFR 141.602(b)(1), the Department shall accept TTHM and HAA5 analytical results from subpart L compliance monitoring, standard monitoring, or system specific monitoring in any tabular or spreadsheet format.

(5) Under 40 CFR 141.602(a)(1)(ii)(F), the Department shall not reject any data or approve any monitoring schedule to replace rejected data.

(6) This subsection replaces 40 CFR 141.602(a)(2)(iii). If a system submits a model that does not fully meet the requirements under 40 CFR 141.602(a)(2), the system must correct the deficiencies so that the model fully meets the requirements under 40 CFR 141.602(a)(2) of this section. If the system fails to correct the deficiencies it must conduct standard monitoring under 40 CFR 141.601.

(7) Under 40 CFR 141.603(b)(2), the Department shall not require systems to submit any distribution system schematics or recommended subpart V compliance monitoring locations in addition to their 40/30 certifications.

(8) Under 40 CFR 141.603(b)(3), the Department shall not require systems meeting the criteria of 40 CFR 141.603(a) to conduct standard monitoring under 40 CFR 141.601 or a system specific study under 40 CFR 141.602.

(9) Under 40 CFR 141.605(b), systems shall use the number and type of monitoring locations specified in the table in 40 CFR 141.605(b) as their subpart V routine compliance monitoring locations. The Department shall not require different or additional locations.

(10) This subsection replaces 40 CFR 141.605(d). Systems shall not recommend locations other than those specified in 40 CFR 141.605(c).

(11) Under 40 CFR 141.605(e), the Department approves subpart V monitoring during any month in the third quarter of the calendar year as the equivalent of monitoring during the peak historical month for TTHM and HAA5 concentration.

(12) Footnote 1 to the table in 40 CFR 141.620(c) shall be interpreted to mean that, upon written request submitted to the Department before the compliance date established in the table, with documentation of the time needed to install capital improvements, and with documentation that the improvements will aid in complying with MCL and operational evaluation levels, the Department shall grant the system the additional time needed up to an additional 24 months.

(13) Subpart V monitoring plans required under 40 CFR 141.622(a)(1) 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 or non-transient non-community);

4. The number and type of water sources and water treatment plants; and

5. The population served by the system not including the population served by any consecutive systems that receive water from the system.

(b) Monitoring locations.

(c) Monitoring dates.

(d) Compliance calculation procedures.

(14) Under 40 CFR 141.622(b), 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 prior to the date the system conducts its initial monitoring under 40 CFR 141, subpart V. All other systems shall make their monitoring plan available for review during sanitary surveys conducted by the Department and shall submit the monitoring plan if requested by the Department.

(15) This subsection replaces 40 CFR 141.622(c).

(a) Systems shall modify their 40 CFR 141, subpart V, monitoring plan to reflect any of the following system changes if the change is expected to impact relative DBP levels in the distribution system:

1. Addition or removal of a water source.

2. Addition or removal of a booster disinfection station.

3. Addition or removal of a finished water storage tank.

4. Addition of a new water service area.

5. Change to the primary or residual disinfectant site or type.

(b) Systems that modify their 40 CFR 141, subpart V, monitoring plan shall do the following:

1. Ensure the modified plan replaces existing compliance monitoring locations that have the lowest LRAA with new locations that reflect the current distribution system locations where TTHM or HAA5 levels are expected to be high.

2. Ensure the modified plan includes an equal number of highest TTHM locations and highest HAA5 locations and includes the total number of monitoring locations specified in the table in 40 CFR 141.621(a)(2).

3. Provide rationale for each new highest TTHM location in the modified plan and ensure the location meets at least one of the following characteristics:

a. Location is near the ends of the distribution system, at or before the last group of customers.

b. Location is in a mixing zone where water from different sources combines within the distribution system.

c. Location is hydraulically downstream of finished water storage facilities, especially those with a common inlet and outlet, and booster disinfection.

d. Location is in a hydraulic dead-end where flow of water is low or stagnant.

4. Provide rationale for each new highest HAA5 location in the modified plan and ensure the location meets at least one of the following characteristics:

a. Location is in areas with low but existing disinfectant residual (generally, disinfectant residual levels should be consistently above 0.2 mg/L for free chlorine or 0.6 mg/L for combined chlorine).

b. Location is near the end of the distribution system, at or before the last group of customers.

c. Location is in a mixing zone where water from different sources combines within the distribution system.

d. Location is downstream of finished water storage facilities and booster disinfection.

e. Location is prior to the last fire hydrant.

5. Ensure sample locations provide geographic and hydraulic representation.

(c) Systems that modify their 40 CFR 141, subpart V, monitoring plan shall submit a copy of the modified plan to the appropriate Department of Environmental Protection District Office or Approved County Health Department prior to monitoring in accordance with the modified plan.

(16) 40 CFR 141.623(d) shall be disregarded. The Department shall return a system from reduced to routine monitoring only if the system is required to return to routine monitoring under 40 CFR 141.623(c).

(17) Under 40 CFR 141.626(b)(2)(i) and (ii), the Department shall approve in writing a system’s written request to limit the scope of its operational evaluation if the request identifies the cause of the operational evaluation level exceedance. The report of limited scope need not examine any of the items in 40 CFR 141.626(b)(2) that do not relate to the identified cause of the operational evaluation level exceedance.

(18) This subsection replaces 40 CFR 141.629(a) and discusses reporting requirements for subpart V TTHM and HAA5 monitoring.

(a) Systems and laboratories shall report results, with sampling locations, of required TTHM and HAA5 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) and (c) below shall report the summary information described in paragraphs (b) and (c). Systems required to report under paragraphs (b) or (c) 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) Subpart H systems serving 500 or more persons and systems using only ground water not under the direct influence of surface water and serving 10,000 or more persons shall report a summary of results of analyses for TTHM and HAA5 in a format including all of the following information:

1. The system name and PWS identification number,

2. A contact person and phone number, and

3. The information listed in 40 CFR 141.629(a)(1) and (2).

(c) Subpart H systems serving less than 500 persons and seeking to qualify for, or remain on, reduced TTHM/HAA5 monitoring shall report a summary of TOC information in a format including all of the following information:

1. The system name and PWS identification number,

2. A contact person and phone number, and

3. The information required by 40 CFR 141.629(a)(2).

(d) For systems that are not subject to paragraph 62-550.822(18)(b), F.A.C., the Department shall perform calculations to determine whether MCLs or operational evaluation levels were exceeded.

(19) Systems shall take all TTHM and HAA5 samples required by 40 CFR 141, subpart V, during normal operating conditions.

(a) Systems shall demonstrate that TTHM and HAA5 samples were taken during 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.

(b) Systems using distribution system flushing as a means to reduce water residence time in their distribution system and manage TTHM and HAA5 levels shall, to the extent possible, take TTHM and HAA5 samples during the middle third of the time period between flushing events.

Rulemaking Authority 403.861(9) FS. Law Implemented  403.852(12), 403.853(1), (3), (7), 403.861(16), (17) FS. History–New ________.

 

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 July 1, 2009, edition of 40 CFR, Subpart O (sections 151 through 155) and Appendix A to 40 CFR 141, Subpart O 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-R-01-002, January 2001, which are incorporated herein by reference.

(1) through (3) No change.

Rulemaking Specific Authority 403.861(9) FS. Law Implemented  403.853(3), (4), 403.861(9) FS. History–New 9-22-99, Amended 8-1-00, 11-27-01, 4-10-03,________.

 

TABLE 3: [insert the effective date of these rule amendments]

 

STAGE 1 MAXIMUM CONTAMINANT LEVELS FOR DISINFECTION BYPRODUCTS

 

FEDERAL CONTAMINANT ID NUMBER	CONTAMINANT	MCL (mg/L)
2950	Total Trihalomethanes (TTHM)	0.080 with compliance determined based on the RAA for the system 1 0.080 with compliance determined based on the LRAA at each monitoring location 2
2456	Haloacetic Acids (Five) (HAA5)	0.060 with compliance determined based on the RAA for the system 1 0.060 with compliance determined based on the LRAA at each monitoring location 2
1011	Bromate	0.010
1009	Chlorite	1.0

 

1 For further details regarding compliance determinations, see 40 CFR 141.133(b)(1), which is incorporated by reference in Rule 62-550.821, F.A.C.

2 For further details regarding compliance determinations, see 40 CFR 141.620(c)(7) and (d), which are incorporated by reference in Rule 62-550.822, F.A.C.

Abbreviations Used:MCL = maximum contaminant level;

mg/L = milligrams per liter;.

RAA = running annual average;

LRAA = locational running annual average.

TABLE 7: MONITORING FREQUENCIES AND LOCATIONS:

[insert the effective date of these rule amendments]

 

CONTAMINANT OR DISINFECTANT RESIDUAL GROUP	APPLICABILITY	INITIAL OR ROUTINE MONITORING		TRIGGER THAT INCREASES MONITORING	INCREASED MONITORING		TRIGGER THAT REDUCES MONITORING	REDUCED MONITORING		MONITORING LOCATION(S)
		GWSs SYSTEMS	SUBPART H SYSTEMS		GWSs SYSTEMS	SUBPART H SYSTEMS		GWSs SYSTEMS	SUBPART H SYSTEMS
ASBESTOS RULE 62-550.511	CWSs, NTNCWSs	1 SAMPLE EVERY 9 YEARS		SAMPLE > MCL	1 SAMPLE QUARTERLY		SYSTEM NOT SUSCEPTIBLE	NO SAMPLING REQUIRED		NOTE 1
NITRATE & NITRITE RULES 62-550.500(5) & 62-550.512	CWSs, NTNCWSs	1 SAMPLE ANNUALLY	1 SAMPLE QUARTERLY	GWS SYS. WITH SAMPLE ≥ 50% OF MCL	1 SAMPLE QUARTERLY		SUBPART H SYS. WITH EACH OF 4 MOST RECENT QUARTERLY SAMPLES  50% OF MCL	---	1 SAMPLE ANNUALLY DURING QUARTER WITH HIGHEST RESULT	EVERY ENTRY POINT TO DIST. SYS. DURING NORMAL OPERATING CONDITIONS
	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		4 FOUR CONSECUTIVE QUARTERS < MCL	SEE ROUTINE MONITORING		EVERY ENTRY POINT TO DIST. SYS. DURING NORMAL OPERATING CONDITIONS
CHLORINE & CHLORAMINES RULES 62-550.514(1) & 62-550.821	CWSs/NTNCWSs ADDING, OR DELIVERING WATER THAT HAS BEEN TREATED WITH, CHLORINE OR CHLORAMINES	MULTIPLE SAMPLES MONTHLY; SEE NOTE 2		---	---		---	---		NOTE 2
CHLORINE DIOXIDE RULES 62-550.514(1) & 62-550.821	CWSs/NTNCWSs/ TWSs ADDING CHLORINE DIOXIDE	1 SAMPLE DAILY		SAMPLE > MCL	ADDITIONAL 3-SAMPLE SET THE FOLLOWING DAY		---	---		NOTE 3
TOTAL TRIHALOMETHANE S & HALOACETIC ACIDS (FIVE)  STAGE 1 MCLs 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	---	---		GWS 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 SAMPLE PER TREATMENT PLANT ANNUALLY DURING MONTH OF WARMEST WATER TEMP.	1 SAMPLE PER TREATMENT PLANT QUARTERLY	NOTE 4
	CWSs/NTNCWSs ADDING A DISINFECTANT & SERVING 500 to 9,999 PERSONS	1 SAMPLE PER TREATMEN T PLANT ANNUALLY DURING MONTH OF WARMEST WATER TEMP.	1 SAMPLE PER TREATMENT PLANT QUARTERLY	GWS SYS. WITH AVG. OF ANNUAL SAMPLES > MCL	1 SAMPLE PER TREATMENT PLANT QUARTERLY	---	GWS 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 SAMPLE PER TREATME NT PLANT EVERY 3 YEARS DURING MONTH OF WARMEST WATER TEMP.	1 SAMPLE PER TREATMENT PLANT ANNUALLY DURING MONTH OF WARMEST WATER TEMP.
	CWSs/NTNCWSs ADDING A DISINFECTANT & SERVING < 500 PERSONS	1 SAMPLE PER TREATMENT PLANT ANNUALLY DURING MONTH OF WARMEST WATER TEMP.		AVG. OF ANNUAL SAMPLES > MCL	1 SAMPLE PER TREATMENT PLANT QUARTERLY		GWS SYS. WITH ANNUAL AVG. TTHM & HAA5 ≤ 50% OF MCL FOR 2 CONSECUTIVE YEARS OR ≤ 25% OF MCL FOR 1 YEAR		---
TOTAL TRIHALOMETHANE S & HALOACETIC ACIDS (FIVE) - STAGE 2 MCLs RULES 62-550.514(2) & 62-550.822	CWSs/NTNCWSs USING A PRIMARY OR RESIDUAL DISINFECTANT OTHER THAN UV LIGHT OR DELIVERING WATER THAT HAS BEEN TREATED WITH A PRIMARY OR RESIDUAL DISINFECTANT OTHER THAN UV LIGHT	POPULATION BASED - REFER TO 40 CFR 141.621(a)(2)		MONITORING ANNUALLY OR LESS FREQUENTLY & TTHM SAMPLE > 0.080 MG/L, OR HAA5 SAMPLE > 0.060 MG/L, AT ANY LOCATION	DUAL SAMPLE SETS QUARTERLY AT ALL LOCATIONS		GWS WITH LRAA TTHM & HAA5  50% OF MCL AT ALL MONITORING LOCATIONS; SUBPART H SYS. WITH ANNUAL AVG. SOURCE-WATER TOC  4.0 MG/L & LRAA TTHM & HAA5  50% OF MCL AT ALL MONITORING LOCATIONS	POPULATION BASED - REFER TO 40 CFR 141.623(a)		HIGHEST TTHM LOCATIONS & HIGHEST HAA5 LOCATIONS IN ACCORDANCE WITH 40 CFR 141, SUBPART V, MONITORING PLAN
CHLORITE STAGE 1 MCL RULES 62550.514(2) & 62550.821	CWSs/NTNCWSs ADDING CHLORINE DIOXIDE	1 SAMPLE DAILY		SAMPLE > MCL	ADDITIONAL 3-SAMPLE SET THE FOLLOWING DAY		---	---		NOTE 5
		3-SAMPLE SET MONTHLY		---	---		NO INDIVIDUAL ENTRY-POINT OR DIST. SYS. SAMPLE > MCL FOR 1 YEAR	3-SAMPLE SET QUARTERLY
BROMATE STAGE 1 MCL RULES 62550.514(2)(b) & 62550.821	CWSs/NTNCWSs ADDING OZONE	1 SAMPLE PER TREATMENT PLANT MONTHLY		---	---		ANNUAL AVG. BROMATE  0.0025 MG/L BASED ON MONTHLY MEASUREMENT S ANNUAL AVG. SOURCEWATER BROMIDE  0.05 MG/L BASED UPON MONTHLY MEASUREMENT S	1 SAMPLE PER TREATMENT PLANT QUARTERLY		ENTRANCE TO DIST. SYS. UNDER NORMAL OPERATING CONDITIONS
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		GWS SYS. WITH NO DETECTION OF ANY VOC DURING 3 YEARS OF ANNUAL SAMPLING	1 SAMPLE EVERY 3 YEARS	---	NOTE 7
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 QUARTERLY SAMPLES IN THE SAME YEAR EVERY 3 YEARS		NOTE 7
	CWSs/NTNCWSs SERVING ≤ 3,300 PERSONS							1 SAMPLE EVERY 3 YEARS
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		---	---		SITES REFLECTING WATER THROUGHOUT DIST. SYS.
	TWSs SERVING ≤ 1,000 PERSONS	2 SAMPLES QUARTERLY	2 SAMPLES MONTHLY
SECONDARY CONTAMINANTS RULES 62-550.500(5) & 62-550.520	CWSs	1 SAMPLE EVERY 3 YEARS		---	---		---	---		EVERY ENTRY POINT TO DIST. SYS. DURING NORMAL OPERATING CONDITIONS
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; SEE 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 SAMPLE EVERY 9 YEARS		EVERY ENTRY POINT TO DIST. SYS. DURING NORMAL OPERATING CONDITIONS
							DETECTION LIMIT < AVERAGE OF INITIAL MONITORING SAMPLES OR LAST REDUCED MONITORING SAMPLE < 1/2 MCL	1 SAMPLE EVERY 6 YEARS
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 SAMPLE EVERY 3 YEARS FOR GROSS BETA, TRITIUM, & STRONTIUM-90		EVERY ENTRY POINT TO DIST. SYS. DURING NORMAL OPERATING CONDITIONS
	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	EVERY 3 YEARS FOR GROSS BETA, IODINE-131, TRITIUM, & STRONTIUM-90

 

Abbreviations used:

CWSs = community water systems;SOC = synthetic organic contaminant;

GWSs SYSTEMS = ground water systems;TOC = total organic carbon;

HAA5 = haloacetic acids (five);TTHM = total trihalomethanes;

MCL = maximum contaminant level;TWSs = transient non-community water systems;

UV = ultraviolet;

MG/L = milligrams per liter;VOC = volatile organic contaminant

NTNCWSs = non-transient non-community water systems;

pCi/L = picocuries per liter

 

NOTE 1: Systems susceptible to asbestos contamination due solely to corrosion of asbestos-cement pipe shall sample at a tap served by asbestos-cement pipe and under conditions where asbestos contamination is most likely to occur. Systems susceptible to asbestos contamination due solely to source water shall monitor at every entry point to the distribution system during normal operating conditions. Systems susceptible to asbestos contamination due to both source water and corrosion of asbestos-cement pipe shall sample at a tap served by asbestos-cement pipe and under conditions where asbestos contamination is most likely to occur.

NOTE 2: Systems shall measure the residual disinfectant level at the same locations in the distribution system where, and at the same time when, total coliforms are sampled.

NOTE 3: Systems shall take routine daily samples at the entrance to the distribution system. Systems shall take additional three-sample sets in the distribution system 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 disinfectant residual in the distribution system and there are no disinfectant addition disinfection points after the entrance to the distribution system (i.e., no booster chlorination), the system shall take three samples as close to the first customer as possible at intervals of at least six hours.

(b) If chlorine is used to maintain a disinfectant residual in the distribution system and there are one or more disinfectant addition points after the entrance to the distribution system (i.e., booster chlorination), the system shall take one sample at each of the following locations: as close to the first customer as possible, in 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. Systems taking more than one sample shall take at least 25% of the samples at locations representing maximum residence time of the water in the distribution system and shall take the remaining samples at locations representing at least average residence time in the distribution system and representing the entire distribution system, taking into 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 additional three-set samples in the distribution system; each three-set sample shall consist of one sample at each of the following locations: a location as close to the first customer as possible, a 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. If a system does not 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, GWSs systems shall take a minimum of one sample that is representative of each well. Under all other 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 subsection 62-550.518(2), F.A.C.

NOTE 9: Systems shall conduct repeat monitoring in accordance with subsection 62-550.518(7), F.A.C., and systems that routinely collect fewer than five samples per month 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 previous two quarters are below the regulatory detection limit.  Additionally, under the conditions described in paragraph 62-550.519(1)(c), F.A.C., historical data may be used to satisfy initial monitoring requirements. Systems shall take one sample quarterly if an MCL is exceeded.

NOTE 11: Quarterly monitoring for gross beta shall be based on the analysis of monthly samples or the analysis of a composite of three monthly samples.  For  iodine-131, a composite of five consecutive daily samples shall be analyzed once each quarter. Annual monitoring for tritium and strontium-90 shall be conducted by means of the analysis of a composite of four consecutive quarterly samples or analysis of four quarterly samples.

 

TABLE 8: INITIAL OR ROUTINE MONITORING SCHEDULE REFERENCE SUBSECTION 62-550.500(3): [insert the effective date of these rule amendments] Under initial or routine monitoring, public water systems shall take required samples during the time period specified below.
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	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	NOT REQUIRED
NITRATES AND NITRITES RULES 62-550.500(3) & 62-550.512	GROUND WATER SYSTEMS	ANNUALLY
	SUBPART H SYSTEMS	QUARTERLY			ANNUALLY
INORGANICS RULES 62-550.500(3) & 62-550.513	GROUND WATER SYSTEMS	FIRST YEAR OF EACH THREE-YEAR COMPLIANCE PERIOD	SECOND YEAR OF EACH THREE-YEAR COMPLIANCE PERIOD	THIRD YEAR OF EACH THREE-YEAR COMPLIANCE PERIOD	NOT REQUIRED
	SUBPART H SYSTEMS	ANNUALLY			NOT REQUIRED
CHLORINE & CHLORAMINES RULES 62-550.514(1) & 62-550.821		MONTHLY FOR SYSTEMS ADDING, OR DELIVERING WATER TREATED WITH, CHLORINE OR CHLORAMINES			NOT REQUIRED
CHLORINE DIOXIDE RULES 62-550.514(1) & 62-550.821		DAILY FOR SYSTEMS ADDING CHLORINE DIOXIDE
TOTAL TRIHALOMETHANES & HALOACETIC ACIDS (FIVE)  STAGE 1 MCLs 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	NOT REQUIRED
	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		NOT REQUIRED
TOTAL TRIHALOMETHANES & HALOACETIC ACIDS (FIVE)  STAGE 2  MCLs RULES 62-550.500(3), 62-550.514(2), & 62-550.822	GROUND WATER SYSTEMS	QUARTERLY FOR SYSTEMS SERVING  10,000 PEOPLE; ANNUALLY DURING MONTH OF HIGHEST DBP CONCENTRATIONS FOR SYSTEMS SERVING < 10,000 PEOPLE	ANNUALLY DURING MONTH OF HIGHEST DBP CONCENTRATIONS	QUARTERLY FOR SYSTEMS SERVING  10,000 PEOPLE; ANNUALLY DURING MONTH OF HIGHEST DBP CONCENTRATIONS FOR SYSTEMS SERVING < 10,000 PEOPLE	NOT REQUIRED
	SUBPART H SYSTEMS	QUARTERLY	QUARTERLY FOR SYSTEMS SERVING  500 PEOPLE; ANNUALLY DURING MONTH OF HIGHEST DBP CONCENTRATIONS FOR SYSTEMS SERVING < 500 PEOPLE
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			NOT REQUIRED
BROMATE STAGE 1 MCL RULES 62-550.514(2) & 62-550.821		MONTHLY FOR SYSTEMS ADDING OZONE			NOT REQUIRED
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	NOT REQUIRED
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	NOT REQUIRED
MICROBIOLOGICAL CONTAMINANTS RULES 62-550.500(3) & 62-550.518	GROUND WATER SYSTEMS	MONTHLY			MONTHLY FOR SYSTEMS SERVING  1,000 PEOPLE & QUARTERLY FOR SYSTEMS SERVING  1,000 PEOPLE
	SUBPART H SYSTEMS	MONTHLY
GROSS ALPHA, RADIUM-226, RADIUM-228 & 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	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	NOT REQUIRED
SECONDARY CONTAMINANTS RULES 62-550.500(3) & 62-550.520		FIRST YEAR OF EACH THREE-YEAR COMPLIANCE PERIOD	SECOND YEAR OF EACH THREE-YEAR COMPLIANCE PERIOD	NOT REQUIRED	NOT REQUIRED