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Jaffrey Town of

Sewage treatment plant, major discharger, Jaffrey, New Hampshire. NPDES permit NH0100595 expired Nov 30, 2014; its limits still apply. Last 12 months: over a limit 12 times (last August 2026), 1 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (41 values), form B quarterly (9 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
8 values over a limit, 0 required values missing, 0 of 16 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
December 2025Copper, total recoverable, daily maximum7.1 ug/L≤ 6.7 ug/L6%
March 2026Copper, total recoverable, daily maximum8.5 ug/L≤ 6.7 ug/L27%
March 2026LC50 Static 48Hr Acute Ceriodaphnia dubia, daily minimum80.6 %≥ 100 %19%
March 2026NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia, daily minimum25 %≥ 56.2 %56%
April 2026BOD, carbonaceous [5 day, 20 C], weekly average11 mg/L≤ 10 mg/L10%
April 2026E. coli, colony forming units [CFU], daily maximum410 CFU/100mL≤ 406 CFU/100mL1%
May 2026BOD, carbonaceous [5 day, 20 C], weekly average14 mg/L≤ 10 mg/L40%
June 2026BOD, carbonaceous [5 day, 20 C], daily maximum20 mg/L≤ 17 mg/L18%
June 2026BOD, carbonaceous [5 day, 20 C], weekly average13.1 mg/L≤ 10 mg/L31%
June 2026Phosphorus, total [as P], monthly average1.74 lb/d≤ 1.54 lb/d13%
July 2026Phosphorus, total [as P], monthly average2.33 lb/d≤ 1.54 lb/d51%
August 2026Phosphorus, total [as P], monthly average2.58 lb/d≤ 1.54 lb/d68%

Limits in force (145)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 8 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec
Oxygen, dissolved [DO]daily minimum≥ 7 mg/LJun–Sep
pHminimum≥ 6.5 SUall year
pHmaximum≤ 8 SUall year
Solids, total suspendedmonthly average≤ 15 mg/LJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
Solids, total suspendedmonthly average≤ 7 mg/LJul–Sep
Solids, total suspendedmonthly average≤ 10 mg/LJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
Solids, total suspendedmonthly average≤ 10 mg/LJul–Sep
Solids, total suspendedweekly average≤ 15 mg/LJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
Solids, total suspendedweekly average≤ 12 mg/LJul–Sep
Solids, total suspendedweekly average≤ 10 mg/LJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
Solids, total suspendedweekly average≤ 10 mg/LJul–Sep
Solids, total suspendeddaily maximum≤ 25 mg/LJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
Solids, total suspendeddaily maximum≤ 16 mg/LJul–Sep
Solids, total suspendeddaily maximum≤ 17 mg/LJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
Solids, total suspendeddaily maximum≤ 17 mg/LJul–Sep
Solids, total suspendedmonthly average≤ 156 lb/dJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
Solids, total suspendedmonthly average≤ 73 lb/dJul–Sep
Solids, total suspendedmonthly average≤ 104 lb/dJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
Solids, total suspendedmonthly average≤ 104 lb/dJul–Sep
Solids, total suspendeddaily maximum≤ 261 lb/dJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
Solids, total suspendeddaily maximum≤ 167 lb/dJul–Sep
Solids, total suspendeddaily maximum≤ 174 lb/dJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
Solids, total suspendeddaily maximum≤ 174 lb/dJul–Sep
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly average≤ 156 lb/dJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
Solids, total suspendedweekly average≤ 125 lb/dJul–Sep
Solids, total suspendedweekly average≤ 104 lb/dJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
Solids, total suspendedweekly average≤ 104 lb/dJul–Sep
Nitrogen, ammonia total [as N]monthly average≤ 7 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 5.3 mg/LMay
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LJun
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LJul–Sep
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LOct
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LJun
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LJul–Sep
Nitrogen, ammonia total [as N]weekly average≤ 7 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 7 mg/LMay
Nitrogen, ammonia total [as N]weekly average≤ 1.1 mg/LJun
Nitrogen, ammonia total [as N]weekly average≤ 1.1 mg/LJul–Sep
Nitrogen, ammonia total [as N]weekly average≤ 1.1 mg/LOct
Nitrogen, ammonia total [as N]weekly average≤ 1 mg/LJun
Nitrogen, ammonia total [as N]weekly average≤ 1 mg/LJul–Sep
Nitrogen, ammonia total [as N]daily maximum≤ 25 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 8.6 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 2.8 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 2.8 mg/LJul–Sep
Nitrogen, ammonia total [as N]daily maximum≤ 7.2 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 2 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 2 mg/LJul–Sep
Nitrogen, ammonia total [as N]monthly average≤ 73 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 55 lb/dMay
Nitrogen, ammonia total [as N]monthly average≤ 11.5 lb/dJun
Nitrogen, ammonia total [as N]monthly average≤ 6.9 lb/dJul–Sep
Nitrogen, ammonia total [as N]monthly average≤ 11.5 lb/dOct
Nitrogen, ammonia total [as N]monthly average≤ 10.4 lb/dJun
Nitrogen, ammonia total [as N]monthly average≤ 10.4 lb/dJul–Sep
Nitrogen, ammonia total [as N]daily maximum≤ 260 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 90 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 29.2 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 17.5 lb/dJul–Sep
Nitrogen, ammonia total [as N]daily maximum≤ 75 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 20.8 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 20.8 lb/dJul–Sep
Nitrogen, ammonia total [as N]weekly average≤ 73 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 73 lb/dMay
Nitrogen, ammonia total [as N]weekly average≤ 11.5 lb/dJun
Nitrogen, ammonia total [as N]weekly average≤ 6.9 lb/dJul–Sep
Nitrogen, ammonia total [as N]weekly average≤ 11.5 lb/dOct
Nitrogen, ammonia total [as N]weekly average≤ 10.4 lb/dJun
Nitrogen, ammonia total [as N]weekly average≤ 10.4 lb/dJul–Sep
Phosphorus, total [as P]monthly averagereport only (mg/L)Apr, May, Jun, Oct
Phosphorus, total [as P]monthly averagereport only (mg/L)Jan, Feb, Mar, Nov, Dec
Phosphorus, total [as P]monthly averagereport only (mg/L)Jul–Sep
Phosphorus, total [as P]monthly averagereport only (mg/L)Apr, May, Jun, Oct
Phosphorus, total [as P]monthly averagereport only (mg/L)Jul–Sep
Phosphorus, total [as P]monthly average≤ 1 mg/LJan, Feb, Mar, Nov, Dec
Phosphorus, total [as P]monthly averagereport only (lb/d)Apr, May, Jun, Oct
Phosphorus, total [as P]monthly averagereport only (lb/d)Jan, Feb, Mar, Nov, Dec
Phosphorus, total [as P]monthly averagereport only (lb/d)Jul–Sep
Phosphorus, total [as P]monthly average≤ 1.54 lb/dApr, May, Jun, Oct
Phosphorus, total [as P]monthly average≤ 1.54 lb/dJul–Sep
Phosphorus, total [as P]monthly average≤ 10.4 lb/dJan, Feb, Mar, Nov, Dec
Phosphate, ortho, dissolved [as P]monthly averagereport only (mg/L)Jan, Feb, Mar, Jul, Aug, Sep, Oct, Nov, Dec
Nickel, total recoverabledaily maximumreport only (mg/L)all year
Silver total recoverabledaily maximum≤ .92 ug/Lall year
Silver total recoverabledaily maximum≤ .6 ug/Lall year
Zinc, total recoverablemonthly average≤ 65.9 ug/Lall year
Zinc, total recoverabledaily maximum≤ 65.9 ug/Lall year
Aluminum, total recoverablemonthly averagereport only (ug/L)all year
Aluminum, total recoverabledaily maximumreport only (ug/L)all year
Cadmium, total recoverabledaily maximumreport only (mg/L)all year
Lead, total recoverablemonthly average≤ 1.3 ug/Lall year
Lead, total recoverablemonthly average≤ 1 ug/Lall year
Lead, total recoverabledaily maximumreport only (ug/L)all year
Lead, total recoverabledaily maximumreport only (ug/L)all year
Chromium, total recoverabledaily maximumreport only (mg/L)all year
Copper, total recoverablemonthly average≤ 20 ug/Lall year
Copper, total recoverablemonthly average≤ 5 ug/Lall year
Copper, total recoverabledaily maximumreport only (ug/L)all year
Copper, total recoverabledaily maximum≤ 6.7 ug/Lall year
Di[2-ethylhexyl] phthalate [DEHP]monthly averagereport only (ug/L)all year
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (ug/L)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
Flow, in conduit or thru treatment plantmonthly average≤ .75 MGDJul–Sep
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)Jul–Sep
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)Jul–Sep
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)Jul–Sep
E. coli, colony forming units [CFU]monthly geometric mean≤ 126 CFU/100mLall year
E. coli, colony forming units [CFU]daily maximum≤ 406 CFU/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LJan, Feb, Mar, Apr, Jun, Oct, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LMay
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LJul–Sep
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LJul–Sep
BOD, carbonaceous [5 day, 20 C]weekly average≤ 10 mg/LJan, Feb, Mar, Apr, Jun, Oct, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 10 mg/LMay
BOD, carbonaceous [5 day, 20 C]weekly average≤ 10 mg/LJul–Sep
BOD, carbonaceous [5 day, 20 C]weekly average≤ 10 mg/LJul–Sep
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 17 mg/LJan, Feb, Mar, Apr, Jun, Oct, Nov, Dec
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 16 mg/LMay
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 17 mg/LJul–Sep
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 17 mg/LJul–Sep
BOD, carbonaceous [5 day, 20 C]monthly average≤ 104 lb/dJan, Feb, Mar, Apr, Jun, Oct, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 104 lb/dMay
BOD, carbonaceous [5 day, 20 C]monthly average≤ 63 lb/dJul–Sep
BOD, carbonaceous [5 day, 20 C]monthly average≤ 104 lb/dJul–Sep
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 174 lb/dJan, Feb, Mar, Apr, Jun, Oct, Nov, Dec
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 167 lb/dMay
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 106 lb/dJul–Sep
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 174 lb/dJul–Sep
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 63 lb/dJul–Sep
BOD, carbonaceous [5 day, 20 C]weekly average≤ 104 lb/dJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 104 lb/dJul–Sep
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
LC50 Static 48Hr Acute Ceriodaphnia dubiadaily minimum≥ 100 %Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
LC50 Static 48Hr Acute Ceriodaphnia dubiadaily minimum≥ 100 %Jul–Sep
LC50 Static 48Hr Acute Pimephales promelasdaily minimum≥ 100 %Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
LC50 Static 48Hr Acute Pimephales promelasdaily minimum≥ 100 %Jul–Sep
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiadaily minimum≥ 56.2 %Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiadaily minimum≥ 56.2 %Jul–Sep
Noel Statre 7Day Chronic Pimephalesdaily minimum≥ 56.2 %Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
Noel Statre 7Day Chronic Pimephalesdaily minimum≥ 56.2 %Jul–Sep

How strict are these limits?

Cited limits by parameter: New Hampshire's rules and the federal ones.

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