Rule 62-600.670. Ground Water Monitoring

(1) Wastewater treatment facilities which are designed so that some or all of the reclaimed water or effluent may enter ground waters shall conduct ground water monitoring in accordance with Chapter 62-520, F.A.C., and this chapter.

(2) Where reclaimed water is applied to multiple sites permitted under Part III of Chapter 62-610, F.A.C., one or more of the sites (representative of each site’s hydrogeological characteristics, soil characteristics, vegetative cover, and reclaimed water application method, etc.) shall be selected by the applicant and approved in writing by the Department as the model site(s) for monitoring the ground water.

(3) The minimum schedule for ground water monitoring is specified in Figure 2 below: Figure 2. Minimum Sampling Frequency for Ground Water Monitoring |Parameter |Reuse and Land |Reuse and Land |Injection to Aquifer |Injection to Class F-I, G-I, |Injection to Ground Water, | | |Application Systems – |Application Systems – |Storage and Recovery |or G-II Ground Water, except |except to Class F-I, G-I, | | |New facilities1 with a |New facilities1 with a |(ASR) Systems |ASR Systems |G-II, or ASR Systems | | |design capacity < 100,000 |design capacity ≥ | | | | | |gpd |100,000 gpd and | | | | | | |existing facilities | | | | |Water Level |Semiannually |Quarterly |Quarterly |Monthly |Monthly | |Total |Semiannually |Quarterly | | |Monthly | |Nitrate Nitrogen | | | | | | |(as N) | | | | | | |Total Dissolved Solids|Semiannually |Quarterly | | |Monthly | |Arsenic, |Semiannually |Quarterly | | | | |Total Recoverable | | | | | | |Cadmium, |Semiannually |Quarterly | | | | |Total Recoverable | | | | | | |Chloride (as Cl) |Semiannually |Quarterly | | | | |Chromium, |Semiannually |Quarterly | | | | |Total Recoverable | | | | | | |Lead, Total |Semiannually |Quarterly | | | | |Recoverable | | | | | | |Fecal Coliform |Semiannually |Quarterly |Quarterly | | | |pH |Semiannually |Quarterly | | | | |Total Sulfate |Semiannually |Quarterly | | | | |Total Kjeldahl | | | |Monthly |Monthly | |Nitrogen (as N) | | | | | | |Total Phosphorus | | | | |Monthly | |(as P) | | | | | | |Turbidity |Semiannually |Quarterly |Quarterly |Monthly |Monthly | |Specific Conductance | | |Quarterly | | | |Ground Water | | |Quarterly |Quarterly | | |Standards2 | | | | | | 1In accordance with subsection 62-520.600(10), F.A.C., new facilities are facilities which have filed a complete permit application after July 1, 1994. 2As specified in rules 62-520.420, 62-520.460 and 62-550.830, F.A.C.

(4) Grab samples shall be used to test for all ground water parameters.

(5) Monitoring wells shall be purged prior to sampling to obtain a representative sample. Rulemaking Authority 403.061(7) FS. Law Implemented 403.061(13) FS. History‒New 2-8-16, Amended 9-27-21.