Passage Data · Check a report · Use it from your AI

Rochester, Town of

Sewage treatment plant, major discharger, Gonic, New Hampshire. NPDES permit NH0100668, in force until Jun 30, 2028. Last 12 months: over a limit once (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (31 values), outfall 001 form PA monthly (1 value), outfall 001 form T quarterly (13 values), outfall 001 form TA quarterly (12 values), outfall PFAS form E quarterly (40 values), outfall PFAS form IF quarterly (40 values), and 1 more form
Renewal application due
Jan 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 32 reports late

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

Period endingParameterReportedLimitOver by
March 2026E. coli, daily maximum1732.9 #/100mL≤ 406 #/100mL327%

Limits in force (200)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
Oxygen, dissolved [DO]minimum≥ 7 mg/Lall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 8 SUall year001
pHdaily maximumreport only (SU)all year001
Solids, total suspendedmonthly average≤ 6 mg/LJun–Oct001
Solids, total suspendedmonthly average≤ 13 mg/LJan, Feb, Mar, Apr, May, Nov, Dec001
Solids, total suspendedweekly average≤ 6 mg/LJun–Oct001
Solids, total suspendedweekly average≤ 21 mg/LJan, Feb, Mar, Apr, May, Nov, Dec001
Solids, total suspendeddaily maximumreport only (mg/L)Jun–Oct001
Solids, total suspendeddaily maximumreport only (mg/L)Jan, Feb, Mar, Apr, May, Nov, Dec001
Solids, total suspendedmonthly average≤ 252 lb/dJun–Oct001
Solids, total suspendedmonthly average≤ 546 lb/dJan, Feb, Mar, Apr, May, Nov, Dec001
Solids, total suspendeddaily maximumreport only (lb/d)Jun–Oct001
Solids, total suspendeddaily maximumreport only (lb/d)Jan, Feb, Mar, Apr, May, Nov, Dec001
Solids, total suspendedweekly average≤ 252 lb/dJun–Oct001
Solids, total suspendedweekly average≤ 882 lb/dJan, Feb, Mar, Apr, May, Nov, Dec001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 6.3 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]weekly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 4.31 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 26.3 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly averagereport only (lb/d)May–Oct001
Nitrogen, ammonia total [as N]weekly averagereport only (lb/d)Jan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)Jan, Feb, Mar, Nov, Dec001
Phosphorus, total [as P]monthly average≤ 3.07 mg/Lall year001
Phosphorus, total [as P]monthly average≤ 6.8 mg/LAug–Oct001
Phosphorus, total [as P]monthly averagereport only (mg/L)Jan, Feb, Mar, Nov, Dec001
Phosphorus, total [as P]monthly average≤ .12 lb/dApr–Jul001
Phosphorus, total [as P]monthly averagereport only (lb/d)Jan, Feb, Mar, Nov, Dec001
Phosphorus, total [as P]monthly average≤ .12 lb/dAug–Oct001
Phosphorus, total [as P]monthly averagereport only (lb/d)all year001
Phosphorus, total [as P]monthly averagereport only (lb/d)Aug–Oct001
Phosphorus, total [as P]monthly averagereport only (lb/d)Jan, Feb, Mar, Nov, Dec001
Phosphorus, total [as P]daily maximumreport only (mg/L)Apr–Oct001
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year001
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year001
Carbon, dissolved organic [as C]daily maximumreport only (mg/L)all year001
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year001
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Lead, total [as Pb]daily maximumreport only (mg/L)all year001
Lead, total [as Pb]daily maximumreport only (mg/L)all year001
Nickel, total [as Ni]daily maximumreport only (mg/L)all year001
Nickel, total [as Ni]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Aluminum, total [as Al]daily maximumreport only (mg/L)all year001
Aluminum, total [as Al]daily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantrolling average≤ 5.03 MGDall year001
E. colimonthly average≤ 126 #/100mLall year001
E. colidaily maximum≤ 406 #/100mLall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 13 mg/LJan, Feb, Mar, Apr, May, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 6 mg/LJun–Oct001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 21 mg/LJan, Feb, Mar, Apr, May, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 6 mg/LJun–Oct001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 23 mg/LJan, Feb, Mar, Apr, May, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 9 mg/LJun–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 546 lb/dJan, Feb, Mar, Apr, May, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 252 lb/dJun–Oct001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 965 lb/dJan, Feb, Mar, Apr, May, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 378 lb/dJun–Oct001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 252 lb/dJun–Oct001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 882 lb/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year001
BOD, carbonaceous [5 day, 20 C]monthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
LC50 Static 48Hr Acute Ceriodaphnia dubiaminimum≥ 100 %all year001
LC50 Static Renewal 48Hr Acute Pimephales promelasminimum≥ 100 %all year001
NOEL Static 7Day Chronic Ceriodaphnia dubiaminimum≥ 77 %all year001
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasminimum≥ 77 %all year001
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/L)all yearPFAS
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/L)all yearPFAS
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/g)all yearPFAS
Perfluorobutanoic acid (PFBA)daily maximumreport only (ng/L)all yearPFAS
Perfluorobutanoic acid (PFBA)daily maximumreport only (ng/L)all yearPFAS
Perfluorobutanoic acid (PFBA)daily maximumreport only (ng/g)all yearPFAS
Perfluorooctanesulfonamide (PFOSA)daily maximumreport only (ng/L)all yearPFAS
Perfluorooctanesulfonamide (PFOSA)daily maximumreport only (ng/L)all yearPFAS
Perfluorooctanesulfonamide (PFOSA)daily maximumreport only (ng/g)all yearPFAS
Perfluoropentanoic acid (PFPeA)daily maximumreport only (ng/L)all yearPFAS
Perfluoropentanoic acid (PFPeA)daily maximumreport only (ng/L)all yearPFAS
Perfluoropentanoic acid (PFPeA)daily maximumreport only (ng/g)all yearPFAS
Perfluorohexanoic acid (PFHxA)daily maximumreport only (ng/L)all yearPFAS
Perfluorohexanoic acid (PFHxA)daily maximumreport only (ng/L)all yearPFAS
Perfluorohexanoic acid (PFHxA)daily maximumreport only (ng/g)all yearPFAS
Perfluoroheptanoic acid (PFHpA)daily maximumreport only (ng/L)all yearPFAS
Perfluoroheptanoic acid (PFHpA)daily maximumreport only (ng/L)all yearPFAS
Perfluoroheptanoic acid (PFHpA)daily maximumreport only (ng/g)all yearPFAS
Perfluorononanoic acid (PFNA)daily maximumreport only (ng/L)all yearPFAS
Perfluorononanoic acid (PFNA)daily maximumreport only (ng/L)all yearPFAS
Perfluorononanoic acid (PFNA)daily maximumreport only (ng/g)all yearPFAS
Perfluorodecanoic acid (PFDA)daily maximumreport only (ng/L)all yearPFAS
Perfluorodecanoic acid (PFDA)daily maximumreport only (ng/L)all yearPFAS
Perfluorodecanoic acid (PFDA)daily maximumreport only (ng/g)all yearPFAS
Perfluoroundecanoic acid (PFUnA)daily maximumreport only (ng/L)all yearPFAS
Perfluoroundecanoic acid (PFUnA)daily maximumreport only (ng/L)all yearPFAS
Perfluoroundecanoic acid (PFUnA)daily maximumreport only (ng/g)all yearPFAS
Perfluorododecanoic acid (PFDoA)daily maximumreport only (ng/L)all yearPFAS
Perfluorododecanoic acid (PFDoA)daily maximumreport only (ng/L)all yearPFAS
Perfluorododecanoic acid (PFDoA)daily maximumreport only (ng/g)all yearPFAS
Perfluorotridecanoic acid (PFTrDA)daily maximumreport only (ng/L)all yearPFAS
Perfluorotridecanoic acid (PFTrDA)daily maximumreport only (ng/L)all yearPFAS
Perfluorotridecanoic acid (PFTrDA)daily maximumreport only (ng/g)all yearPFAS
Perfluorotetradecanoic acid (PFTeDA)daily maximumreport only (ng/L)all yearPFAS
Perfluorotetradecanoic acid (PFTeDA)daily maximumreport only (ng/L)all yearPFAS
Perfluorotetradecanoic acid (PFTeDA)daily maximumreport only (ng/g)all yearPFAS
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)daily maximumreport only (ng/L)all yearPFAS
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)daily maximumreport only (ng/L)all yearPFAS
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)daily maximumreport only (ng/g)all yearPFAS
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)daily maximumreport only (ng/L)all yearPFAS
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)daily maximumreport only (ng/L)all yearPFAS
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)daily maximumreport only (ng/g)all yearPFAS
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)daily maximumreport only (ng/L)all yearPFAS
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)daily maximumreport only (ng/L)all yearPFAS
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)daily maximumreport only (ng/g)all yearPFAS
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)daily maximumreport only (ng/L)all yearPFAS
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)daily maximumreport only (ng/L)all yearPFAS
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)daily maximumreport only (ng/g)all yearPFAS
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/L)all yearPFAS
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/L)all yearPFAS
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/g)all yearPFAS
Perfluorodecanesulfonic acid (PFDS)daily maximumreport only (ng/L)all yearPFAS
Perfluorodecanesulfonic acid (PFDS)daily maximumreport only (ng/L)all yearPFAS
Perfluorodecanesulfonic acid (PFDS)daily maximumreport only (ng/g)all yearPFAS
Perfluoroheptanesulfonic acid (PFHpS)daily maximumreport only (ng/L)all yearPFAS
Perfluoroheptanesulfonic acid (PFHpS)daily maximumreport only (ng/L)all yearPFAS
Perfluoroheptanesulfonic acid (PFHpS)daily maximumreport only (ng/g)all yearPFAS
Perfluorohexanesulfonic acid (PFHxS)daily maximumreport only (ng/L)all yearPFAS
Perfluorohexanesulfonic acid (PFHxS)daily maximumreport only (ng/L)all yearPFAS
Perfluorohexanesulfonic acid (PFHxS)daily maximumreport only (ng/g)all yearPFAS
Perfluorooctanesulfonic acid (PFOS)daily maximumreport only (ng/L)all yearPFAS
Perfluorooctanesulfonic acid (PFOS)daily maximumreport only (ng/L)all yearPFAS
Perfluorooctanesulfonic acid (PFOS)daily maximumreport only (ng/g)all yearPFAS
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)daily maximumreport only (ng/L)all yearPFAS
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)daily maximumreport only (ng/L)all yearPFAS
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)daily maximumreport only (ng/g)all yearPFAS
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)daily maximumreport only (ng/L)all yearPFAS
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)daily maximumreport only (ng/L)all yearPFAS
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)daily maximumreport only (ng/g)all yearPFAS
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)daily maximumreport only (ng/L)all yearPFAS
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)daily maximumreport only (ng/L)all yearPFAS
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)daily maximumreport only (ng/g)all yearPFAS
Perfluoropentanesulfonic acid (PFPeS)daily maximumreport only (ng/L)all yearPFAS
Perfluoropentanesulfonic acid (PFPeS)daily maximumreport only (ng/L)all yearPFAS
Perfluoropentanesulfonic acid (PFPeS)daily maximumreport only (ng/g)all yearPFAS
Perfluorononanesulfonic acid (PFNS)daily maximumreport only (ng/L)all yearPFAS
Perfluorononanesulfonic acid (PFNS)daily maximumreport only (ng/L)all yearPFAS
Perfluorononanesulfonic acid (PFNS)daily maximumreport only (ng/g)all yearPFAS
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/L)all yearPFAS
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/L)all yearPFAS
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/g)all yearPFAS
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)daily maximumreport only (ng/L)all yearPFAS
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)daily maximumreport only (ng/L)all yearPFAS
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)daily maximumreport only (ng/g)all yearPFAS
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)daily maximumreport only (ng/L)all yearPFAS
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)daily maximumreport only (ng/L)all yearPFAS
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)daily maximumreport only (ng/g)all yearPFAS
Perfluorododecanesulfonic acid (PFDoS)daily maximumreport only (ng/L)all yearPFAS
Perfluorododecanesulfonic acid (PFDoS)daily maximumreport only (ng/L)all yearPFAS
Perfluorododecanesulfonic acid (PFDoS)daily maximumreport only (ng/g)all yearPFAS
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)daily maximumreport only (ng/L)all yearPFAS
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)daily maximumreport only (ng/L)all yearPFAS
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)daily maximumreport only (ng/g)all yearPFAS
N-methyl perfluorooctanesulfonamide (NMeFOSA)daily maximumreport only (ng/L)all yearPFAS
N-methyl perfluorooctanesulfonamide (NMeFOSA)daily maximumreport only (ng/L)all yearPFAS
N-methyl perfluorooctanesulfonamide (NMeFOSA)daily maximumreport only (ng/g)all yearPFAS
N-ethyl perfluorooctanesulfonamide (NEtFOSA)daily maximumreport only (ng/L)all yearPFAS
N-ethyl perfluorooctanesulfonamide (NEtFOSA)daily maximumreport only (ng/L)all yearPFAS
N-ethyl perfluorooctanesulfonamide (NEtFOSA)daily maximumreport only (ng/g)all yearPFAS
3-Perfluoropropyl propanoic acid (3:3 FTCA)daily maximumreport only (ng/L)all yearPFAS
3-Perfluoropropyl propanoic acid (3:3 FTCA)daily maximumreport only (ng/L)all yearPFAS
3-Perfluoropropyl propanoic acid (3:3 FTCA)daily maximumreport only (ng/g)all yearPFAS
Perfluoro-3-methoxypropanoic acid (PFMPA)daily maximumreport only (ng/L)all yearPFAS
Perfluoro-3-methoxypropanoic acid (PFMPA)daily maximumreport only (ng/L)all yearPFAS
Perfluoro-3-methoxypropanoic acid (PFMPA)daily maximumreport only (ng/g)all yearPFAS
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)daily maximumreport only (ng/L)all yearPFAS
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)daily maximumreport only (ng/L)all yearPFAS
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)daily maximumreport only (ng/g)all yearPFAS
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)daily maximumreport only (ng/L)all yearPFAS
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)daily maximumreport only (ng/L)all yearPFAS
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)daily maximumreport only (ng/g)all yearPFAS
3-Perfluoroheptyl propanoic acid (7:3 FTCA)daily maximumreport only (ng/L)all yearPFAS
3-Perfluoroheptyl propanoic acid (7:3 FTCA)daily maximumreport only (ng/L)all yearPFAS
3-Perfluoroheptyl propanoic acid (7:3 FTCA)daily maximumreport only (ng/g)all yearPFAS
Perfluoro-4-methoxybutanoic acid (PFMBA)daily maximumreport only (ng/L)all yearPFAS
Perfluoro-4-methoxybutanoic acid (PFMBA)daily maximumreport only (ng/L)all yearPFAS
Perfluoro-4-methoxybutanoic acid (PFMBA)daily maximumreport only (ng/g)all yearPFAS
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)daily maximumreport only (ng/L)all yearPFAS
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)daily maximumreport only (ng/L)all yearPFAS
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)daily maximumreport only (ng/g)all yearPFAS

New limits from Apr 1, 2032

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Phosphorus, total [as P], monthly average0.2 mg/L (Aug–Nov)tighter2.403 mg/L (4 values)12×
Phosphorus, total [as P], monthly average0.2 mg/L (Apr–Jul)tighter2.09 mg/L (4 values)10.4×

How strict are these limits?

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

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NH0100668 · MCP: https://passage-data.com/mcp