PRASA Santa Isabel WTP

NPDES permit PR0026182 · Minor NON-POTW · effective, expires 2030-09-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file
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

5values over a limit
0required values missing, on 0 form(s)
0of 16 forms filed late

Last period with anything received: 2026-07-31. Most often over: BOD, 5-day, 20 deg. C (2), Lead, total [as Pb] (2), Solids, total dissolved (1).

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among PR permits in EPA's filings — check your permit).

Limits in force (29)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX <= 32.2 deg C all year
001TurbidityDAILY MX <= 50 NTU all year
001TurbidityDAILY MX <= 1243 NTU all year
001Color [PT-CO units]DAILY MX <= 15 col unit (pc) all year
001Color [PT-CO units]DAILY MX <= 113 col unit (pc) all year
001Oxygen, dissolved [DO]INST MIN >= 5 mg/L all year
001Oxygen, dissolved [DO]INST MIN >= 3 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 5 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 20 mg/L all year
001pHM5 >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, settleableDAILY MX report only all year
001Phosphorus, total [as P]DAILY MX <= 160 ug/L all year
001Phosphorus, total [as P]DAILY MX <= 3.42111343 mg/L all year
001Cyanide, total [as CN]DAILY MX <= 4 ug/L all year
001Cadmium, total [as Cd]DAILY MX <= .47 ug/L all year
001Cadmium, total [as Cd]DAILY MX <= 6 ug/L all year
001Copper, total [as Cu]DAILY MX <= 5.3 ug/L all year
001Copper, total [as Cu]DAILY MX <= 817.98473 ug/L all year
001Lead, total [as Pb]DAILY MX <= 1.39 ug/L all year
001Zinc, total [as Zn]DAILY MX <= 69.03 ug/L all year
001Zinc, total [as Zn]DAILY MX <= 283.21 ug/L all year
001Flow, in conduit or thru treatment plantDAILY MX <= .226 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualDAILY MX <= 11 ug/L all year
001Whole Effluent Toxicity [WET] - P. promelasMINIMUM report only all year
001Whole Effluent Toxicity [WET] - D. magnaMINIMUM report only all year
001Solids, total dissolvedDAILY MX <= 500 mg/L all year
001Mercury, total [as Hg]DAILY MX <= .05 ug/L all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states