PRASA Sanamuerto WTP — NPDES permit PR0026735: limits, due date and EPA's record

NPDES permit PR0026735 · Minor NON-POTW · effective, expires 2031-04-30 · EPA's file as of 2026-09-19

Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

Last period with anything received: 2026-07-31. Most often over: Lead, total [as Pb] (1), Sulfide-hydrogen sulfide [undissociated] (1).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (22)

Outfall	Parameter	Statistic	Limit	Months
001	Temperature, water deg. centigrade	DAILY MX	<= 30 deg C	all year
001	Turbidity	DAILY MX	<= 50 NTU	all year
001	Turbidity	DAILY MX	<= 7100 NTU	all year
001	Color [PT-CO units]	DAILY MX	<= 15 col unit (pc)	all year
001	Color [PT-CO units]	DAILY MX	<= 26.32339 col unit (pc)	all year
001	Oxygen, dissolved [DO]	INST MIN	>= 5 mg/L	all year
001	Oxygen, dissolved [DO]	INST MIN	>= 3.5 mg/L	all year
001	BOD, 5-day, 20 deg. C	DAILY MX	<= 5 mg/L	all year
001	BOD, 5-day, 20 deg. C	DAILY MX	<= 30 mg/L	all year
001	pH	MINIMUM	>= 6 SU	all year
001	pH	MAXIMUM	<= 9 SU	all year
001	Solids, settleable	DAILY MX	report only	all year
001	Sulfate, total [as SO4]	DAILY MX	<= 250 mg/L	all year
001	Copper, total [as Cu]	DAILY MX	<= 668 ug/L	all year
001	Copper, total [as Cu]	DAILY MX	<= 9.3 ug/L	all year
001	Lead, total [as Pb]	DAILY MX	<= 3.18 ug/L	all year
001	Flow, in conduit or thru treatment plant	DAILY MX	<= .0467 MGD	all year
001	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
001	Chlorine, total residual	DAILY MX	<= 11 ug/L	all year
001	Sulfide-hydrogen sulfide [undissociated]	DAILY MX	<= 2 ug/L	all year
001	Solids, total dissolved	DAILY MX	<= 500 mg/L	all year
001	Mercury, total [as Hg]	DAILY MX	<= .05 ug/L	all year