ASHLAND TOWN OF

NPDES permit NH0100005 · Major POTW · effective, expires 2027-01-31 · 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

2values over a limit
0required values missing, on 0 form(s)
0of 25 forms filed late

Last period with anything received: 2026-08-31. Most often over: Phosphorus, total [as P] (2).

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among NH permits in EPA's filings — check your permit).

Limits in force (76)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only Apr, May, Jun
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 50 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 400 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 667 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 600 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8 SU all year
001pHDAILY MX report only Apr, May, Jun
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedDAILY MX <= 50 mg/L all year
001Solids, total suspendedMO AVG <= 400 lb/d all year
001Solids, total suspendedDAILY MX <= 667 lb/d all year
001Solids, total suspendedWKLY AVG <= 600 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only Apr, May, Jun
001Nitrogen, ammonia total [as N]DAILY MX report only Apr, May, Jun
001Nitrogen, Kjeldahl, total [as N]MO AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, Kjeldahl, total [as N]MO AVG report only Jan, Feb, Mar, Nov, Dec
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only Jan, Feb, Mar, Nov, Dec
001Nitrite + Nitrate total [as N]MO AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrite + Nitrate total [as N]MO AVG report only Jan, Feb, Mar, Nov, Dec
001Nitrite + Nitrate total [as N]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrite + Nitrate total [as N]DAILY MX report only Jan, Feb, Mar, Nov, Dec
001Phosphorus, total [as P]MO AVG report only Jan, Feb, Mar, Nov, Dec
001Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
001Phosphorus, total [as P]MO AVG <= 11.3 lb/d Apr, May, Jun, Jul, Aug, Sep, Oct
001Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
001Carbon, tot organic [TOC]DAILY MX report only Apr, May, Jun
001Carbon, tot organic [TOC]DAILY MX report only Apr, May, Jun
001Carbon, dissolved organic [as C]DAILY MX report only Apr, May, Jun
001Hardness, total [as CaCO3]DAILY MX report only Apr, May, Jun
001Hardness, total [as CaCO3]DAILY MX report only Apr, May, Jun
001Cadmium, total [as Cd]DAILY MX report only Apr, May, Jun
001Cadmium, total [as Cd]DAILY MX report only Apr, May, Jun
001Copper, total [as Cu]DAILY MX report only Apr, May, Jun
001Copper, total [as Cu]DAILY MX report only Apr, May, Jun
001Lead, total [as Pb]DAILY MX report only Apr, May, Jun
001Lead, total [as Pb]DAILY MX report only Apr, May, Jun
001Nickel, total [as Ni]DAILY MX report only Apr, May, Jun
001Nickel, total [as Ni]DAILY MX report only Apr, May, Jun
001Zinc, total [as Zn]DAILY MX report only Apr, May, Jun
001Zinc, total [as Zn]DAILY MX report only Apr, May, Jun
001Aluminum, total [as Al]DAILY MX report only Apr, May, Jun
001Aluminum, total [as Al]DAILY MX report only Apr, May, Jun
001Lead, total recoverableMO AVG <= .5 ug/L all year
001Copper, total recoverableMO AVG <= 9 ug/L all year
001Copper, total recoverableDAILY MX <= 17.1 ug/L all year
001Flow, in conduit or thru treatment plantROLL AVG <= 1.6 MGD all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMO MAX report only all year
001Chlorine, total residualMO AVG <= .113 mg/L all year
001Chlorine, total residualDAILY MX <= .196 mg/L all year
001E. coliMO GEO <= 126 #/100mL all year
001E. coliDAILY MX <= 406 #/100mL all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
001LC50 Static 48Hr Acute Ceriodaphnia dubiaDAILY MN >= 100 % Apr, May, Jun
001LC50 Static 48Hr Acute Pimephales promelasDAILY MN >= 100 % Apr, May, Jun
001NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaDAILY MN >= 9.7 % Apr, May, Jun
001Noel Statre 7Day Chronic PimephalesDAILY MN >= 9.7 % Apr, May, Jun
PFASPerfluorooctanoic acid (PFOA)DAILY MX report only all year
PFASPerfluorooctanoic acid (PFOA)DAILY MX report only all year
PFASPerfluorononanoic acid (PFNA)DAILY MX report only all year
PFASPerfluorononanoic acid (PFNA)DAILY MX report only all year
PFASPerfluorohexanesulfonic acid (PFHxS)DAILY MX report only all year
PFASPerfluorohexanesulfonic acid (PFHxS)DAILY MX report only all year
PFASPerfluorooctanesulfonic acid (PFOS)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