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

Yellowstone Boys and Girls Ranch County Water Sewer District

Residential Care, Billings, Montana. NPDES permit MT0020460, in force until Sep 30, 2027. Last 12 months: over a limit 3 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (23 values), form Q quarterly (4 values), form Y yearly
Renewal application due
Apr 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
12 values over a limit, 4 required values missing, 2 of 17 reports late

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

Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], monthly average4 mg/L≤ 2.7 mg/L48%
March 2026pH, daily maximum9.1 SU≤ 9 SU—
June 2026E. coli, MTEC-MF, weekly geometric mean301 MPN/100mL≤ 252 #/100mL19%

Limits in force (30)

ParameterStatisticLimitMonths
Temperature, water deg. centigradesingle samplereport only (deg C)all year
Flow ratemonthly averagereport only (MGD)all year
Flow ratedaily maximumreport only (MGD)all year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 5.3 lb/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 8 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
pHsingle samplereport only (SU)all year
Solids, total suspendedmonthly average≤ 45 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 65 mg/Lall year
Solids, total suspendedmonthly average≤ 8 lb/dall year
Solids, total suspendeddaily maximum≤ 11.5 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Oil & Greasedaily maximum≤ 10 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 2.7 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 5.9 mg/Lall year
Nitrogen, ammonia total [as N]single samplereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]single samplereport only (mg/L)all year
E. coli, MTEC-MFmonthly geometric mean≤ 126 #/100mLApr–Oct
E. coli, MTEC-MFmonthly geometric mean≤ 630 #/100mLJan, Feb, Mar, Nov, Dec
E. coli, MTEC-MFweekly geometric mean≤ 252 #/100mLApr–Oct
E. coli, MTEC-MFweekly geometric mean≤ 1260 #/100mLJan, Feb, Mar, Nov, Dec
Durationtotalreport only (d/mo)all year
BOD, carbonaceous, percent removalminimum≥ 85 %all year
Solids, suspended percent removalminimum≥ 65 %all year
Oil and grease visualvaluereport only (N=0;Y=1)all year

How strict are these limits?

Cited limits by parameter: Montana'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/MT0020460 · MCP: https://passage-data.com/mcp