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Riverence Limited Partnership

Fish Hatcheries And Preserves, Rochester, Washington. NPDES permit WA0040819 expired Jul 31, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form M2 monthly (2 values), outfall 001 form MM monthly (17 values), outfall INFL form MM monthly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 36 reports late

Limits in force (42)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L) (alert, not enforceable)May–Oct001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L) (alert, not enforceable)May–Oct001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L) (alert, not enforceable)May–Oct001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L) (alert, not enforceable)May–Oct001
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d) (alert, not enforceable)May–Oct001
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d) (alert, not enforceable)May–Oct001
pHmaximumreport only (SU) (alert, not enforceable)all year001
pHmaximumreport only (SU) (alert, not enforceable)all year001
pHminimumreport only (SU) (alert, not enforceable)all year001
pHminimumreport only (SU) (alert, not enforceable)all year001
Solids, total suspendedmonthly average≤ 5 mg/Lall year001
Solids, total suspendedmonthly average≤ 5 mg/Lall year001
Solids, settleabledaily maximumreport only (mL/L) (alert, not enforceable)all year001
Solids, settleabledaily maximumreport only (mL/L) (alert, not enforceable)all year001
Solids, settleablemonthly average≤ .1 mL/Lall year001
Solids, settleablemonthly average≤ .1 mL/Lall year001
Solids, settleabledaily maximumreport only (mL/L) (alert, not enforceable)all year001
Solids, settleabledaily maximumreport only (mL/L) (alert, not enforceable)all year001
Solids, settleablemonthly averagereport only (mL/L) (alert, not enforceable)all year001
Solids, settleablemonthly averagereport only (mL/L) (alert, not enforceable)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L) (alert, not enforceable)May–Oct001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L) (alert, not enforceable)May–Oct001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L) (alert, not enforceable)May–Oct001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L) (alert, not enforceable)May–Oct001
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d) (alert, not enforceable)May–Oct001
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d) (alert, not enforceable)May–Oct001
Phosphorus, total [as P]daily maximumreport only (mg/L) (alert, not enforceable)May–Oct001
Phosphorus, total [as P]daily maximumreport only (mg/L) (alert, not enforceable)May–Oct001
Phosphorus, total [as P]monthly averagereport only (mg/L) (alert, not enforceable)May–Oct001
Phosphorus, total [as P]monthly averagereport only (mg/L) (alert, not enforceable)May–Oct001
Phosphorus, total [as P]monthly averagereport only (lb/d) (alert, not enforceable)May–Oct001
Phosphorus, total [as P]monthly averagereport only (lb/d) (alert, not enforceable)May–Oct001
Chlorine, total residualmonthly averagereport only (ug/L) (alert, not enforceable)all year001
Chlorine, total residualmonthly averagereport only (ug/L) (alert, not enforceable)all year001
Flowdaily maximumreport only (MGD) (alert, not enforceable)all year001
Flowdaily maximumreport only (MGD) (alert, not enforceable)all year001
Flowmonthly averagereport only (MGD) (alert, not enforceable)all year001
Flowmonthly averagereport only (MGD) (alert, not enforceable)all year001
Solids, settleabledaily maximumreport only (mL/L) (alert, not enforceable)all yearINFL
Solids, settleabledaily maximumreport only (mL/L) (alert, not enforceable)all yearINFL
Solids, settleablemonthly averagereport only (mL/L) (alert, not enforceable)all yearINFL
Solids, settleablemonthly averagereport only (mL/L) (alert, not enforceable)all yearINFL

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WA0040819 · MCP: https://passage-data.com/mcp