(1)
For the purposes of this Chapter, all analytes and parameters shall be measured
using approved EPA drinking water test methods, as identified in Rule
62-550.550, F.A.C. When an
approved EPA drinking water test method is unavailable, other accepted
published methods approved by the department shall be used for
measuring.
(2) In addition to the
surrogate and operational parameters monitoring requirements in paragraphs
62-565.560(7)(c) and (d), and subsections 62-565.560(8) and (9), F.A.C., the
minimum requirements for sampling and monitoring are specified in Table 1
below:
Table 1: Monitoring Frequencies for ATWFs
|
Constituent or Disinfectant Residual
Group
|
Frequency of Routine Monitoring
|
Sample Type
|
Monitoring Location
|
|
Flow
|
Continuous
|
In-line meter
|
ATWF Influent, Internal Outfall, and ATWF
Effluent
|
|
pH
|
Continuous
|
In-line meter
|
ATWF Influent, Internal Outfall, and ATWF
Effluent
|
|
Temperature
|
Continuous
|
In-line meter
|
ATWF Influent, Internal Outfall, and ATWF
Effluent
|
|
CBOD5
|
Daily
|
Grab
|
ATWF Influent
|
|
TSS
|
Daily
|
Grab
|
ATWF Influent, Internal Outfall, and ATWF
Effluent
|
|
Total Organic Carbon (TOC)
|
Daily
|
Grab
|
ATWF Influent, Internal Outfall, and ATWF
Effluent
|
|
Total Organic Halogen (TOX)
|
Weekly
|
Grab
|
ATWF Influent, Internal Outfall, and ATWF
Effluent
|
|
Giardia lamblia,
Cryptosporidium, and enteric viruses
|
Monthly
|
Grab
|
ATWF Influent and ATWF Effluent
|
|
Total coliform
|
Daily
|
Grab
|
ATWF Effluent
|
|
E. coli
|
Daily
|
Grab
|
ATWF Effluent
|
|
Nitrate and Nitrite
|
Monthly
|
Composite
|
ATWF Effluent
|
|
Inorganics1
|
Monthly
|
Composite
|
ATWF Effluent
|
|
Chlorine and/or
Chloramines2
|
Continuous
|
In-line meter
|
ATWF Effluent
|
|
Sodium
|
Monthly
|
Grab
|
ATWF Influent, Internal Outfall, and ATWF
Effluent
|
|
Chlorine Dioxide3
|
Continuous
|
In-line meter
|
ATWF Effluent
|
|
Chlorite3
|
Daily
|
Grab
|
ATWF Effluent
|
|
Bromate4
|
Daily
|
Grab
|
ATWF Effluent
|
|
Volatile Organics1
|
Monthly
|
Grab
|
ATWF Effluent
|
|
Synthetic Organics1
|
Monthly
|
Composite
|
ATWF Effluent
|
|
Secondary
Contaminants1
|
Monthly
|
Composite
|
ATWF Effluent
|
|
Gross alpha, Radium-226 and
Uranium1
|
Monthly
|
Grab
|
ATWF Effluent
|
|
Beta Particle and Photon
Radioactivity1
|
Monthly
|
Grab
|
ATWF Effluent
|
|
Ultraviolet Dose5
|
Continuous
|
In-line meter
|
Internal Outfall
|
|
Ultraviolet Transmission at 254
nanometers5
|
Continuous
|
In-line meter
|
Internal Outfall
|
|
Ultraviolet Light
Intensity5
|
Continuous
|
In-line meter
|
Internal Outfall
|
|
Ozone4
|
Continuous
|
In-line meter
|
ATWF Effluent
|
|
Perfluorooctanoic Acid
(PFOA)6
|
Quarterly
|
Grab
|
ATWF Influent and ATWF Effluent
|
|
Perfluorooctane Sulfonic Acid
(PFOS)6
|
Quarterly
|
Grab
|
ATWF Influent and ATWF Effluent
|
|
Perfluorohexane Sulfonate
(PFHxS)6
|
Quarterly
|
Grab
|
ATWF Influent and ATWF Effluent
|
|
Perfluorononanoic Acid
(PFNA)6
|
Quarterly
|
Grab
|
ATWF Influent and ATWF Effluent
|
|
Hexafluoropropylene Oxide Dimer Acid
(HFPO-DA)6
|
Quarterly
|
Grab
|
ATWF Influent and ATWF Effluent
|
|
Perfluorobutane Sulfonate
(PFBS)6
|
Quarterly
|
Grab
|
ATWF Influent and ATWF Effluent
|
|
Hazard Index6, 7
|
Quarterly
|
Calculated
|
ATWF Influent and ATWF Effluent
|
1Inorganics, Volatile Organics,
Synthetic Organics, Secondary Contaminants, Gross alpha, Radium-226 and
Uranium, and Beta Particle and Photon Radioactivity shall be as defined in
Chapter 62-550, F.A.C.
2For those systems using chlorine
or chloramines for disinfection.
3For those systems using chlorine
dioxide for disinfection.
4For those systems using ozone for
disinfection.
5For those systems using
ultraviolet for disinfection.
6Per- and Polyfluoroalkyl
Substances (PFAS) field testing, sample collection and preservation, laboratory
testing, including quality control procedures, and all record keeping shall
comply with Chapters 62-160 and 62-550, F.A.C. The analytical test methods
shall be sufficiently sensitive to ensure department-established MDLs and PQLs
are met.
7The Hazard Index (HI) is made up
of a sum of fractions. Each fraction compares the level of each PFAS measured
in the water to the highest level determined not to have risk of health
effects.
Step 1. Divide the measured concentration of PFHxS by the
health-based value of 9 ng/L.
Step 2. Divide the measured concentration of PFNA by the
health-based value of 10 ng/L.
Step 3. Divide the measured concentration of HFPO-DA by the
health-based value of 10 ng/L.
Step 4. Divide the measured concentration of PFBS by the
health- based value of 2000 ng/L.
Step 5. Add the ratios from steps 1-4 together using the
following equation:
Hazard Index = ([PFHxS]/[10 ng/L]) + ([PFNA]/[10 ng/L]) +
([HFPO-DA]/[10 ng/L]) + ([PFBS] /[2000 ng/L])
Step 6. To determine HI compliance, repeat steps 1-5 for each
sample collected in the past year and calculate the average HI for all the
samples taken in the past year.
(3) ATWFs discharging to surface waters of
the state shall also be subject to the applicable monitoring requirements
established in Chapters 62-302, and 62-304, F.A.C.
(4) For Giardia lamblia,
Cryptosporidium, and enteric viruses, if there are no detects
in the advanced treated water for two years, the permittee may notify the
Department of the applicant's intent to transition to bi-annual
monitoring.
(5) With the exception
of radionuclides, for the parameters listed in Table 1 which have an
established MCL, if there are no exceedances of one half of the established MCL
in finished advanced treated water samples for one year, the permittee may
notify the Department of the applicant's intent to transition to quarterly
sampling.
(6) With the exception of
radionuclides, for the parameters listed in Table 1 which have an established
MCL, if there are no exceedances of one half of the established MCL in finished
advanced treated water samples for two years following the transition to
quarterly sampling, the permittee may notify the Department of the applicant's
intent to transition to bi-annual sampling.
(7) For the radionuclides identified in Table
1, if there are no exceedances of one half of the established MCL in finished
advanced treated water samples for one year, the permittee may notify the
Department of the applicant's intent to transition to quarterly
sampling.
(8) For the radionuclides
identified in Table 1, if there are no exceedances of one half of the
established MCL in finished advanced treated water samples for one year
following the transition to quarterly sampling, the permittee may notify the
Department of the applicant's intent to transition to annual
sampling.
(9) For the PFAS and HI
identified in Table 1, if there are no exceedances of one half of the
established MCL for all PFAS and HI constituents in finished advanced treated
water samples for one year, the permittee may notify the Department of the
applicant's intent to transition to triennial sampling.
(10) For the PFAS and HI identified in Table
1, if there are no exceedances of the MCL for all PFAS and HI constituents in
finished advanced treated water samples for one year, the permittee may notify
the Department of the applicant's intent to transition to annual
sampling.
(11) If a permittee is on
reduced monitoring for any of the parameters identified in subsections
62-565.540(4)-(10), F.A.C., and does not meet the reduced monitoring criteria
for any sampling event, the permittee shall resume monitoring in accordance
with the frequencies outlined in Table 1 for that parameter.
(12) Continuous Monitoring of pH.
(a) The permittee shall maintain the pH of
reclaimed water and advanced treated water within the range set forth in the
ATWF permit, except excursions from the range are permitted subject to the
following limitations:
1. The total time
during which the pH values are outside the required range of pH values shall
not exceed 7 hours and 26 minutes in any calendar month; and
2. No individual excursion from the range of
pH values shall exceed 60 minutes.
(b) The applicant may request an adjustment
of the requirements set forth in paragraph (a) of this subsection with respect
to the length of individual excursions from the range of pH values, and the
Department shall approve the requested adjustment if a different period of time
is appropriate based upon the treatment system, plant configuration or other
related technical factors.
(c) An
excursion is an unintentional and temporary incident in which
the pH value of reclaimed water or advanced treated water exceeds the range set
forth in the advanced treatment water facility permit.
(13) The Department shall allow use of
continuous monitoring equipment, for those parameters identified in Table 1
requiring a grab sample, if all of the following conditions are met:
(a) The applicant provides an affirmative
demonstration that the proposed monitoring equipment will provide a means for
controlling the process that is at least as reliable and accurate as a grab
sample.
(b) The proposed monitoring
equipment will generate a continuous reading.
(c) The proposed monitoring equipment will be
equipped with an automated data logging or recording device.
(d) The proposed monitoring equipment shall
be calibrated according to the requirements of Chapter 62-160, F.A.C.
(e) The proposed monitoring equipment shall
be maintained according to the manufacturer's operation and maintenance
instructions.
(f) The use of the
proposed monitoring equipment and setpoints associated with use of the proposed
monitoring equipment shall be fully incorporated into the operating
protocol.
(14) In
addition to the monitoring requirements established in subsection
62-565.540(2), F.A.C., ATWFs shall conduct semi-annual sampling of the water
entering and exiting the ATWF for the toxic pollutants that have been
identified under 40 CFR Part
122, Appendix D, (adopted and incorporated by
reference in paragraph
62-620.100(3)(b),
F.A.C., effective October 8, 2021).
(15) Monitoring Locations.
(a) All samples shall be collected in
accordance with the monitoring locations identified in table 1 above.
(b) For influent sampling, a minimum of one
sample shall be taken at every entry point to the treatment system that is
representative of each source before treatment. If an ATWF draws water from
more than one source and the sources are combined before treatment, samples
shall be taken at an entry point to the treatment system during periods of
typical operating conditions (e.g., when water is representative of the sources
being used).
(c) For effluent
sampling, a minimum of one sample shall be taken at every discharge point from
the treatment system that is representative of the advanced treated water
leaving the ATWF prior to blending with other sources of water. For ATWFs
involving high-level disinfection, compliance with the TSS limitations shall be
achieved, and sampled for, after filtration and before application of the
disinfectant.
(d) For internal
outfall sampling, a minimum of one sample shall be taken at the internal
outfall or outfalls identified in the Department approved Operating
Protocol.
(e) The location of
monitoring sites shall meet the requirements set forth in subsection
62-565.500(11), F.A.C.
(f) Sampling
shall demonstrate compliance with the TBTRs for emerging constituents, pathogen
reduction, and site-specific indicator compound and surrogate parameter
requirements set forth in this chapter.
(g) Samples shall be taken at the monitoring
sites specified in the permit, unless the permittee receives prior approval
from the Department to use an alternate site where a represenatitve sample can
be collected.
(16) Grab
samples shall be collected during periods of minimal treatment plant pollutant
removal efficiencies. The actual time and flow conditions during which such
samples are taken shall be recorded.
