(1) Wastewater treatment facilities shall monitor the flow, the influent for CBOD5 and TSS, and the reclaimed water or effluent for all reclaimed water or effluent parameters as required by the permit. The minimum schedule for sampling and testing parameters to be monitored at a wastewater treatment plant is specified in Figure 1 below.
Figure 1. Minimum Schedule for Sampling and Testing of Domestic Wastewater Treatment Plant Monitoring Parameters by Permitted Capacity
Parameters
2,000 gpd up to, but not including, 25,000 gpd
25,000 gpd up to, but not including, 50,000 gpd
50,000 gpd up to, but not including, 500,000 gpd
0.5 mgd up to, but not including,
1 mgd
1 mgd up to, but not including,
5 mgd
5 mgd up to, but not including,
15 mgd
15 mgd
and
above
Flow, pH1
Chlorine Residual2
daily
2, 3, or 5/wk8
daily 5/wk
daily 5/wk
daily 5/wk
continuous
continuous
continuous
Dissolved Oxygen
daily
2, 3, or 5/wk8
daily 5/wk
daily 5/wk
daily 5/wk
daily 7/wk
daily 7/wk
daily 7/wk
Suspended Solids4
CBOD5, Nutrients
monthly
monthly
every two
weeks3
weekly
weekly
daily 7/wk
daily 7/wk
Chlorine Residual5
monthly
monthly
every two
weeks3
weekly
daily 7/wk
daily 7/wk
daily 7/wk
Fecal Coliform4,6
monthly
monthly
every two
weeks3
weekly
weekly
daily 5/wk
daily 5/wk
Total Coliform7
daily/7 wk
daily/7 wk
daily/7 wk
daily/7 wk
daily/7 wk
daily/7 wk
daily/7 wk
E. Coli9
weekly
weekly
weekly
weekly
weekly
weekly
weekly
Entercocci10
weekly
weekly
weekly
weekly
weekly
weekly
weekly
1Hourly measurements during the period of required operator attendance may be substituted for continuous measurement.
2Total chlorine residual measured for disinfection effectiveness (after chlorine contact). Hourly measurements during the period for required operator attendance may be substituted for continuous measurement except for systems permitted under Parts III and V of Fl. Admin. Code Chapter 62-610 Continuous measurement shall be provided for all systems permitted under Parts III and V of Fl. Admin. Code Chapter 62-610, regardless of permitted capacity.
3Reuse and land application facilities (which include rapid-rate, slow-rate, absorption fields and other systems pursuant to Fl. Admin. Code Chapter 62-610) less than 100,000 gpd, may sample monthly. (This reduction does not apply to injection wells pursuant to Fl. Admin. Code Chapter 62-528, and reuse systems requiring high-level disinfection.)
4For reuse systems requiring high-level disinfection, samples shall be obtained and reported daily, 7 days per week for systems of 0.5 mgd and greater, 4 days per week for systems of at least 50,000 gpd but less than 0.5 mgd, and 3 days per week for systems less than 50,000 gpd; or daily during the period required for operator attendance, whichever is less. At permit renewal, reduction to 4 days per week for systems of 0.5 mgd and greater or to 3 days per week for systems of at least 50,000 gpd but less than 0.5 mgd may be requested if no violations for these parameters have occurred in the last 12 months. For systems requiring high-level disinfection, the reduction allowed by note 3 does not apply.
5Total chlorine residual measured for dechlorination effectiveness.
6Not applicable to reuse systems discharging to Class I waters or waters contiguous to or tributary to Class I waters or to reuse systems injecting into Class F-I, G-I, or G-II ground waters.
7Applicable to reuse systems discharging to Class I waters or waters contiguous to or tributary to Class I waters or to reuse systems injecting into Class F-I, G-I, or G-II ground waters. These systems shall monitor 7 days per week for total coliform, regardless of permitted capacity, as specified in Parts III and V of Fl. Admin. Code Chapter 62-610
8The daily frequency shall be 2, 3, or 5 days per week consistent with the required operator attendance specified in Fl. Admin. Code R. 62-699.310(2)(a)
9Applicable to surface water discharges to Class I and Class III freshwater in accordance with Fl. Admin. Code R. 62-302.530
10Applicable to surface water discharges to predominately marine Class III waters in accordance with Fl. Admin. Code R. 62-302.530
    (2) Wastewater treatment facilities with a permitted capacity of 100,000 gallons per day or greater that discharge to ground water via reuse and land application systems shall monitor the reclaimed water or effluent for the primary and secondary drinking water standards contained in Fl. Admin. Code Chapter 62-550, and the Revised Total Coliform Rule contained in Fl. Admin. Code R. 62-550.830, (except for asbestos, color, odor, and residual disinfectants) annually.
    (3) Sample types.
    (a) Grab samples shall be used to test pH, chlorine residual, dissolved oxygen and other dissolved gases, microbiological parameters, cyanide, oil and grease, dissolved constituents in field-filtered samples (ortho-phosphorus, metals, etc.), specific conductance, un-ionized ammonia, volatile organic compounds, total recoverable petroleum hydrocarbons, and temperature.
    (b) Grab samples shall be used to test CBOD5, TSS, and nutrients at facilities with a permitted capacity less than 100,000 gallons per day. Except as provided in paragraphs 62-600.660(3)(c) and (d), F.A.C., all other samples for CBOD5, TSS, and nutrients shall be flow proportioned, composite samples and compositing periods shall be 24, 16, or 8 hours based on the facility’s staffing requirement. In no case shall the compositing period be less than 8 hours.
    (c) Grab samples shall be used to test for TSS where a facility is required to meet the 5.0 mg/L TSS limitation associated with high-level disinfection for a reuse system permitted under Fl. Admin. Code Chapter 62-610
    (d) Except for the parameters listed in Fl. Admin. Code R. 62-600.660(3)(a), 24 hour flow proportioned, composite samples shall be used to analyze reclaimed water or effluent for the primary and secondary drinking water standards.
    (e) Grab samples shall be collected during periods of minimal treatment plant pollutant removal efficiencies or maximum organic loading in the reclaimed water or effluent. The actual time and flow conditions during which such samples are taken shall be recorded.
    (4) Sampling locations.
    (a) Influent samples shall be collected so they do not contain digester supernatant or returned activated sludge, or any other plant process recycled waters.
    (b) Reclaimed water or effluent analyses shall generally be performed on samples collected after final treatment and:
    1. Before discharge to holding ponds for reuse and land application systems pursuant to Fl. Admin. Code Chapter 62-610,
    2. After holding ponds, if applicable, and immediately before discharge to surface waters for treatment plants (including overland flow and wetland treatment systems) discharging to surface waters; and,
    3. After holding ponds, if applicable, and immediately before discharge to ground water for treatment plants discharging to ground water via underground injection.
    (c) For systems involving high-level disinfection, compliance with the TSS limitations shall be achieved, and sampled for, after the filter and before application of the disinfectant.
Rulemaking Authority Florida Statutes § 403.061(7). Law Implemented 403.061(13) FS. History—New 2-8-16, Amended 9-27-21.