Florida Administrative Code › 62 - DEPARTMENT OF ENVIRONMENTAL PROTECTION › 62 - Departmental › Chapter 62-610 - REUSE OF RECLAIMED WATER AND LAND APPLICATION › Part VII - INDUSTRIAL USES OF RECLAIMED WATER › Section 62-610.652 - Waste Treatment, Disinfection, and Monitoring

Current through Reg. 50, No. 138; July 16, 2024
(1)
				  Preapplication waste treatment shall result in a reclaimed water that meets
				  secondary treatment and basic disinfection. If required by subsection
				   62-610.652(5),
				  F.A.C., additional treatment and disinfection shall be provided.
(2) Individual industrial activities or users
				  may have water quality needs which may necessitate treatment beyond the minimum
				  requirements established in this part. The Department shall not regulate these
				  additional treatment and disinfection requirements. These additional treatment
				  and disinfection requirements shall be subject to negotiation between the
				  industry and the supplier of the reclaimed water.
(3) Except as provided in paragraph
				   62-610.668(2)(d),
				  F.A.C., domestic wastewater treatment or disinfection provided at the
				  industrial facility before reuse of the reclaimed water at the industrial
				  facility shall be subject to domestic wastewater permitting if the treatment or
				  disinfection at the industrial site is needed to meet the minimum treatment and
				  disinfection requirements imposed by this Part of this chapter.
(4) If additional treatment or disinfection
				  is provided at the industrial facility before reuse of the reclaimed water at
				  the industrial facility, and the additional treatment or disinfection is
				  provided only to meet water quality needs of the industry which are more
				  stringent than the minimum requirements imposed by this part, domestic
				  wastewater permitting shall not be needed for the additional treatment or
				  disinfection facilities located at the industrial facility.
(5) All requirements of Part III of this
				  chapter, including minimum system size requirements, shall be met if reclaimed
				  water will be used in open cooling tower applications, except as provided in
				  paragraph  62-610.668(2)(c) or
				  (d), F.A.C.
(6) Monitoring.
(a) Waste treatment limitations shall be met
				  after disinfection and before discharge to system storage or the reuse
				  system.
(b) If high-level
				  disinfection is provided, the total suspended solids limitation shall be met
				  after filtration and before application of the disinfectant.
(c) For facilities that provide reclaimed
				  water for use in open cooling towers, the permittee shall sample the reclaimed
				  water for Cryptosporidium and Giardia. The following requirements shall be met:
1. Sampling shall be conducted at one time
				  during each two-year period. Intervals between sampling shall not exceed two
				  years. This sampling frequency is independent of the treatment plant's
				  capacity. The sample results shall be submitted to the Department on or before
				  November 28 of each even numbered year using Form
				   62-610.300(3)(a) 
				  4., Pathogen Monitoring, (adopted and incorporated by reference in subparagraph
				   62-610.300(3)(a) 
				  4., F.A.C., effective August 8, 2021,
http://www.flrules.org/Gateway/reference.asp?No=Ref-13373
).
2. Samples shall be taken from at a point
				  immediately following the disinfection process.
3. Samples shall be taken during peak flow
				  periods between the months of August and October.
4. If the wastewater treatment facility uses
				  chlorination for disinfection, samples collected for analysis of Giardia and
				  Cryptosporidium shall be dechlorinated.
5. A grab sample for TSS shall be taken such
				  that it is representative of the water leaving the filters at the treatment
				  facility during the period when pathogen samples are taken. In addition, the
				  permittee shall record the lowest total residual chlorine observed during the
				  period when pathogen samples are collected.
6. EPA Method 1623.1, (adopted and
				  incorporated by reference in subsection
				   62-610.100(7),
				  F.A.C., effective August 8, 2021,
http://www.flrules.org/Gateway/reference.asp?No=Ref-133821
),
				  or other approved methods in accordance with Rule
				   62-160.330, F.A.C., for
				  reclaimed water or nonpotable waters, adjusted appropriately to accommodate the
				  detection limit requirements, shall be used. Methods previously allowed for
				  EPA's ICR shall not be used. The full requirements of the approved method,
				  including quality assurance and quality control, are to be met. Quality
				  assurance and sampling requirements in Chapter 62-160, F.A.C., shall apply.
Two concentrations of Giardia and Cryptosporidium shall be
					 recorded on Part III of Form
					  62-610.300(3)(a) 
					 4., Pathogen Monitoring, (adopted and incorporated by reference in subparagraph
					  62-610.300(3)(a) 
					 4., F.A.C., effective August 8, 2021,
http://www.flrules.org/Gateway/reference.asp?No=Ref-13373
).
a. Total cysts and oocysts shall be
				  enumerated using EPA Method 1623.1, (adopted and incorporated by reference in
				  subsection  62-610.100(7),
				  F.A.C., effective August 8, 2021,
http://www.flrules.org/Gateway/reference.asp?No=Ref-13382
),
				  or other approved methods in accordance with Rule
				   62-160.330, F.A.C.
b. Potentially viable cysts and oocysts shall
				  be enumerated using the DAPI staining technique contained in EPA Method 1623.1,
				  (adopted and incorporated by reference in subsection
				   62-610.100(7),
				  F.A.C., effective August 8, 2021,
http://www.flrules.org/Gateway/reference.asp?No=Ref-13382
),
				  or similar enumeration techniques included in other approved methods in
				  accordance with Rule  62-160.330, F.A.C. Cysts and
				  oocysts that are stained DAPI positive or show internal structure by D.I.C.
				  shall be considered as being potentially viable. If the laboratory reports
				  separate values for DAPI positive and for cysts or oocysts having internal
				  structure, the larger of the two concentrations will be reported as being
				  potentially viable.
7. If
				  the number of potentially viable cysts of Giardia reported exceeds 5 per 100
				  liters or oocysts of Cryptosporidium reported exceeds 22 per 100 liters, a
				  subsequent sample shall be taken and analyzed using EPA Method 1623.1, (adopted
				  and incorporated by reference in subsection
				   62-610.100(7),
				  F.A.C., effective August 8, 2021,
http://www.flrules.org/Gateway/reference.asp?No=Ref-13382
),
				  or other approved methods in accordance with Rule
				   62-160.330, F.A.C. This
				  subsequent sample shall be collected within 90 days of the date the initial
				  sample was taken, analyzed for both Giardia and Cryptosporidium, and the
				  results of the subsequent analysis shall be submitted to the department within
				  60 days of sample collection using Form
				   62-610.300(3)(a) 
				  4., Pathogen Monitoring, (adopted and incorporated by reference in subparagraph
				   62-610.300(3)(a) 
				  4., F.A.C., effective August 8, 2021,
http://www.flrules.org/Gateway/reference.asp?No=Ref-13373
).