SPRAGUE TWIN RIVERS TECH TERM

NPDES permit MA0028037 · Minor NON-POTW · effective, expires 2028-11-30 · 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

3values over a limit
0required values missing, on 0 form(s)
0of 26 forms filed late

Last period with anything received: 2026-07-31. Most often over: Benzo[a]pyrene (2), Solids, total suspended (1).

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (60)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only all year
001Flow rateDAILY MX <= 600 gal/min all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001pHDAILY MX report only all year
001pHMAXIMUM report only all year
001SalinityDAILY MX report only all year
001SalinityDAILY MX report only all year
001Solids, totalDAILY MX report only all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 100 mg/L all year
001Solids, total suspendedDAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Carbon, tot organic [TOC]DAILY MX report only all year
001Cadmium, total [as Cd]DAILY MX report only all year
001Cadmium, total [as Cd]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Lead, total [as Pb]DAILY MX report only all year
001Lead, total [as Pb]DAILY MX report only all year
001Nickel, total [as Ni]DAILY MX report only all year
001Nickel, total [as Ni]DAILY MX report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Oil and greaseDAILY MX <= 15 mg/L all year
001TolueneDAILY MX report only Sep
001BenzeneDAILY MX <= 5 ug/L all year
001AcenaphthyleneDAILY MX report only Sep
001AcenaphtheneDAILY MX report only Sep
001AnthraceneDAILY MX report only Sep
001Benzo[b]fluorantheneDAILY MX report only all year
001Benzo[k]fluorantheneDAILY MX report only all year
001Benzo[a]pyreneDAILY MX <= .00013 ug/L all year
001ChryseneDAILY MX report only all year
001EthylbenzeneDAILY MX report only Sep
001FluorantheneDAILY MX report only Sep
001FluoreneDAILY MX report only Sep
001Indeno[1,2,3-cd]pyreneDAILY MX report only all year
001PhenanthreneDAILY MX report only Sep
001PyreneDAILY MX report only Sep
001Benzo[ghi]peryleneDAILY MX report only Sep
001Benzo[a]anthraceneDAILY MX report only all year
001Dibenz[a,h]anthraceneDAILY MX report only all year
001PhenolDAILY MX report only all year
001NaphthaleneDAILY MX report only Sep
001Chlorine, total residualDAILY MX report only all year
001Number of EventsMO TOTAL report only all year
001Coliform, fecal generalMO AVG report only all year
001Coliform, fecal generalDAILY MX report only all year
001Xylene [mix of m+o+p]DAILY MX report only Sep
001Flow, totalDAILY MX report only all year
001LC50 Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)MINIMUM report only all year
001LC50 Static Renewal 48Hr Acute MenidiaMINIMUM report only all year
PFASPerfluorooctanoic acid (PFOA)DAILY MX report only all year
PFASPerfluoroheptanoic acid (PFHpA)DAILY MX report only all year
PFASPerfluorononanoic acid (PFNA)DAILY MX report only all year
PFASPerfluorodecanoic acid (PFDA)DAILY MX report only all year
PFASPerfluorohexanesulfonic acid (PFHxS)DAILY MX report only all year
PFASPerfluorooctanesulfonic acid (PFOS)DAILY MX report only 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