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St. Regis Mohawk Tribe

Sewage treatment plant, Hogansbury, SR. NPDES permit SR0240281 expired Aug 31, 2026; its limits still apply. Last 12 months: over a limit 28 times (last August 2026), 4 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (37 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
9 values over a limit, 64 required values missing, 4 of 12 reports late

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

All 28 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, monthly average62 mg/L≤ 30 mg/L107%
October 2025BOD, 5-day, 20 deg. C, weekly average67 mg/L≤ 45 mg/L49%
October 2025Solids, total suspended, monthly average43 mg/L≤ 30 mg/L43%
October 2025Solids, total suspended, weekly average74 mg/L≤ 45 mg/L64%
October 2025pH, maximum9 SU≤ 8.5 SU—
November 2025BOD, 5-day, 20 deg. C, monthly average39 mg/L≤ 30 mg/L30%
November 2025pH, maximum8.6 SU≤ 8.5 SU—
December 2025Chlorine, total residual, daily maximum.52 mg/L≤ .5 mg/L4%
February 2026Chlorine, total residual, daily maximum.57 mg/L≤ .5 mg/L14%
April 2026Chlorine, total residual, daily maximum.69 mg/L≤ .5 mg/L38%
April 2026Solids, suspended percent removal, monthly average minimum83.27 %≥ 85 %12%
April 2026Solids, total suspended, monthly average34.35 mg/L≤ 30 mg/L15%
May 2026BOD, 5-day, 20 deg. C, monthly average37 mg/L≤ 30 mg/L23%
May 2026Chlorine, total residual, daily maximum.69 mg/L≤ .5 mg/L38%
May 2026E. coli, geometric mean1986.3 #/100mL≤ 126 #/100mL1476%
May 2026Solids, total suspended, monthly average36.3 mg/L≤ 30 mg/L21%
May 2026Solids, total suspended, weekly average56.2 mg/L≤ 45 mg/L25%
June 2026BOD, 5-day, 20 deg. C, monthly average36 mg/L≤ 30 mg/L20%
June 2026BOD, 5-day, 20 deg. C, weekly average68 mg/L≤ 45 mg/L51%
June 2026Chlorine, total residual, daily maximum.63 mg/L≤ .5 mg/L26%
July 2026Chlorine, total residual, daily maximum.78 mg/L≤ .5 mg/L56%
July 2026Solids, suspended percent removal, monthly average minimum78.9 %≥ 85 %41%
July 2026pH, minimum6.49 SU≥ 6.5 SU—
August 2026BOD, 5-day, 20 deg. C, monthly average40.2 mg/L≤ 30 mg/L34%
August 2026BOD, 5-day, 20 deg. C, weekly average72 mg/L≤ 45 mg/L60%
August 2026Chlorine, total residual, daily maximum.69 mg/L≤ .5 mg/L38%
August 2026Solids, total suspended, weekly average47 mg/L≤ 45 mg/L4%
August 2026Zinc, total [as Zn], monthly average.72 mg/L≤ .3 mg/L140%

Limits in force (37)

ParameterStatisticLimitMonths
Color [PT-CO units]daily maximumreport only (col unit (pc))all year
Oxygen, dissolved [DO]minimumreport only (mg/L)all year
Oxygen, dissolved [DO]monthly average minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 131.35 lb/dall year
BOD, 5-day, 20 deg. Cmonthly average≤ 87.57 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedweekly average≤ 131.35 lb/dall year
Solids, total suspendedmonthly average≤ 87.57 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Solids, settleabledaily maximumreport only (mL/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Chromium, total [as Cr]monthly average≤ 7.56 mg/Lall year
Chromium, total [as Cr]daily maximum≤ 20.9 mg/Lall year
Copper, total [as Cu]monthly average≤ .49 mg/Lall year
Copper, total [as Cu]daily maximum≤ 1.34 mg/Lall year
Lead, total [as Pb]monthly average≤ .3 mg/Lall year
Lead, total [as Pb]daily maximum≤ .94 mg/Lall year
Nickel, total [as Ni]monthly average≤ 5.65 mg/Lall year
Nickel, total [as Ni]daily maximum≤ 14.2 mg/Lall year
Zinc, total [as Zn]monthly average≤ .3 mg/Lall year
Zinc, total [as Zn]daily maximum≤ .94 mg/Lall year
Aluminum, total [as Al]daily maximumreport only (mg/L)all year
Benzenedaily maximum≤ 10 ug/Lall year
Flow, in conduit or thru treatment plantdaily maximum≤ .35 MGDall year
Chlorine, total residualdaily maximum≤ .5 mg/Lall year
E. coligeometric mean≤ 126 #/100mLall year
BOD, 5-day, percent removalmonthly average minimumreport only (%)all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

How strict are these limits?

Cited limits by parameter: the federal ones.

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Your permit document is the final word. As JSON: /api/v1/permits/SR0240281 · MCP: https://passage-data.com/mcp