Fla. Admin. Code Ann. R. 62-565.500 - Requirements for Potable Reuse Systems

(1) The ATWF permit application must include a joint operations plan, which shall address the elements in paragraphs (a) through (h) below:

(a) Pathogen inactivation monitoring and reporting as established in this chapter.

(b) Each facility's responsibility in meeting all MCL requirements set forth in Chapter 62-550, F.A.C., and the log reduction requirements of Rule 62-565.530, F.A.C., prior to the distribution of finished drinking water.

(c) For indirect potable reuse systems, the joint operations plan shall identify all ASR systems associated with the potable reuse system.

(d) The procedures a wastewater treatment facility (WWTF) and an ATWF shall follow to notify the other facilities participating in the joint operations plan and the Department of:

1. Operational changes that may adversely affect the quality of the reclaimed water to be delivered to an ATWF or PWS, and

2. The events and corresponding corrective actions taken when the delivery of reclaimed water adversely affects the potable reuse system.

(e) Cybersecurity protocols in accordance with the America's Water Infrastructure Act (AWIA) of 2018, section 2013, (adopted and incorporated by reference in paragraph 62-565.300(1)(e), F.A.C., effective 2018).

(f) Cross-connection control and separation distances between underground pipes, which shall be in accordance with Rules 62-555.360 and 62-610.469, F.A.C.;

(g) Corrective actions to be taken in the event that a delivery of advanced treated water from the ATWF to a PWS or a PWS distribution system fails to meet the applicable water quality requirements of Chapters 62-550, 62-555, and 62-610, F.A.C.; and

(h) The procedures to implement the comprehensive pretreatment and pollutant source control program's requirements pursuant to Rule 62-565.505, F.A.C., including provisions to conduct source control investigations.

(2) A revised joint operations plan shall be submitted for review and approval to the Department not less than ninety (90) days prior to a change in the information provided pursuant to subsection 62-565.500(1), F.A.C.

(3) The pathogen requirements in Rule 62-565.530, F.A.C., shall be met by at least two separate treatment processes for enteric viruses, Giardia cysts, and Cryptosporidium oocysts. A separate treatment process may be credited with no more than 6.0-log reduction. To be acceptable, a treatment process may achieve no less than 1.0-log reduction. A single treatment process may receive log reduction credits for one or more pathogens.

(4) The treatment train shall include multiple, independent treatment barriers (i.e., redundancy, as defined in Rule 62-565.200, F.A.C.), for the control of organic compounds and pathogens.

(5) Design criteria shall address hazard identification, risk assessment, the identification of at least two treatment barriers, in addition to the comprehensive pretreatment and pollutant souce control program in Rule 62-565.505, F.A.C., for regulated parameters and constituents of emerging concerns, critical control points and corrective actions.

(6) Prior to placing a full-scale potable reuse system into operation, the applicant shall provide reasonable assurance that all treatment processes are installed and are achieving, as designed, the intended functions and can be operated by certified treatment process operators who meet the requirements in subsection 62-565.590(6), F.A.C. An operating protocol describing the actions to be taken to meet this subsection shall be included in the engineering report and shall be available at the facility during inspections.

(7) ATWF permittees shall meet the reliability and redundancy requirements in subsection 62-555.320(13), F.A.C.

(8) ATWF permittees shall meet the standby power requirements in paragraphs 62-555.320(14)(b) though (f), F.A.C.

(9) ATWFs shall be subject to the same setback distance requirements established in subsection 62-555.312(3), F.A.C.

(10) The setback distance described in subsection (9) above, shall be reduced, but in no case to less than 50 feet from sanitary hazards that pose a potentially high risk to water quality and public health and no less than 25 feet from sanitary hazards that pose a moderate risk to water quality and public health, if the applicant provides an affirmative demonstration in the engineering report that reclaimed water will not migrate to the potable water supply well as a result of conditions including the following: the presence, thickness, and extent of natural barriers including impermeable geological strata; the design and construction of the ATWF; the water treatment provided; or the use of alternative means to reduce public health risks, including the use of encasement or restrained joints to eliminate or minimize leakage from a pipeline that is a sanitary hazard, or the use of additional monitoring.

(11) Potable Reuse Systems shall provide safe access points for obtaining representative samples which are required by this chapter.

(12) During full-scale operation of the treatment process designed pursuant to Rule 62-565.560, F.A.C., the applicant shall be subject to the same requirements included in Rule 62-555.350, F.A.C., and continuously monitor the applicable surrogate and operational parameters established pursuant to Rule 62-565.560, F.A.C. The applicant shall implement, in full-scale operation, the treatment process as designed pursuant to Rule 62-565.560, F.A.C.

(13) Each quarter, the ATWF permittee shall calculate the percent of results of the quarter's monitoring that did not meet the surrogate and operational parameter permit limits established to assure proper on-going performance of the treatment process. If greater than ten percent of the monitoring results did not meet surrogate and operational parameter permit limits, within 45 days after the end of the quarter the ATWF permittee shall submit a report to the Department describing the corrective actions planned or taken to reduce the percent to ten percent or less. The permittee shall consult with the Department and, if required, comply with an alternative monitoring plan approved by the Department.

(14) Sampling collection and analysis shall be performed using appropriate methods and standard operating procedures (SOPs) in 40 CFR Part 136, (adopted and incorporated by reference in paragraph 62-620.100(3)(j), F.A.C., effective October 8, 2021), 40 CFR Part 141 Subpart C, (adopted and incorporated by reference in subsection 62-550.550(1), F.A.C., effective July 7, 2015), 40 CFR Part 141 Subpart Z, (adopted and incorporated by reference in paragraph 62-565.300(1)(c), F.A.C., effective June 25, 2024), and Chapter 62-160, F.A.C. Where necessary, the permittee may request approval of alternate procedures and laboratory methods or for alternative MDLs or PQLs.

(15) Except as specifically provided in Rule 62-160.300, F.A.C., any laboratory test required by this chapter, for which methods have already been established and approved in 40 CFR Part 136, (adopted and incorporated by reference in paragraph 62-620.100(3)(j), F.A.C., effective October 8, 2021), 40 CFR Part 141 Subpart C, (adopted and incorporated by reference in subsection 62-550.550(1), F.A.C., effective July 7, 2015), 40 CFR Part 141 Subpart Z, (adopted and incorporated by reference in paragraph 62-565.300(1)(c), F.A.C., effective June 25, 2024), and Chapter 62-160, F.A.C., shall be performed by a laboratory that has been certified by the Department of Health Environmental Laboratory Certification Program (DOH ELCP) for the matrix, test method, and analyte(s) being measured to comply with the permit. For ATWFs, testing for parameters listed in subsection 62-160.300(4), F.A.C., shall be conducted under the direction of a licensed operator.

(16) After construction is complete and prior to placing an ATWF into full-scale operation, the permittee must provide the Department with the results of a full-scale demonstration for each unit process of the ATWF.

(a) The full-scale demonstration shall be conducted for a minimum of thirty consecutive days while the ATWF is achieving steady state.

(b) During the full-scale demonstration, sampling for all permit limitations contained in the ATWFs Department-issued permit must be conducted a minimum of one time. The sampling results from the full-scale demonstration shall be submitted to the Department on the Advanced Treatment Water Facility Monitoring Report, DEP Form 62-565.300(2)(d), (adopted and incorporated by reference in paragraph 62-565.300(2)(d), F.A.C., effective February 26, 2025).

(c) If the results of the sampling for the full-scale demonstration provide reasonable assurance that all permit limitations can be met, the Department shall issue a letter of clearance to place the ATWF into full-scale operation.

(17) Following full-scale implementation of a potable reuse system, the permittee shall submit an annual report on Advanced Treatment Water Facility Annual Report, DEP Form 62-565.300(2)(f), (adopted and incorporated by reference in paragraph 62-565.300(2)(f), F.A.C., effective February 26, 2025) no later than July 1 of each year.

(18) Liquid chemical storage tanks or containers shall be located and secondary containment provided so that chemicals from equipment failure, spillage or accidental drainage shall not enter the water in conduits, treatment or storage basins. Secondary containment shall be capable of containing 110 percent of the capacity for the largest, single tank or container capacity present and the materials used for secondary containment shall be:

(a) Impervious to the stored liquid chemicals and able to withstand deterioration from external environmental conditions;

(b) Non-corrosive or of corrosion-protected materials;

(c) Capable of containing liquid chemicals for at least 30 days; and

(d) Of sufficient thickness and strength to withstand hydrostatic forces at maximum capacity to prevent a discharge during its operating life.

(19) Piping shall be designed to minimize or contain liquid chemical spills in the event of pipe ruptures.

(20) Double-walled pipes, tanks or containers do not require additional secondary containment.

(21) Secondary containment systems shall be designed and installed to direct any release to a monitoring point or points.

Notes

Fla. Admin. Code Ann. R. 62-565.500

Rulemaking Authority 403.861(9), 403.064(17) FS. Law Implemented 403.852(12), 403.861(7), 403.853(6), 403.861(17), 403.064(17) FS.

Adopted by Florida Register Volume 51, Number 028, February 11, 2025 effective 2/26/2025.