Dominion Water and Sanitation District

NPDES permit CO0041645 · Minor POTW · administratively continued, expires 2016-10-31 · EPA's file as of 2026-09-19

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Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

This permit expired on 2016-10-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 22 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (53)

OutfallParameterStatisticLimitMonths
002BOD, 5-day, 20 deg. C30DA AVG <= 30 mg/L all year
002BOD, 5-day, 20 deg. CMX 7D AV <= 45 mg/L all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspended30DA AVG <= 30 mg/L all year
002Solids, total suspendedMX 7D AV <= 45 mg/L all year
002Nitrogen, ammonia total [as N]30DA AVG <= 2.6 mg/L Jan
002Nitrogen, ammonia total [as N]30DA AVG <= 7 mg/L Feb
002Nitrogen, ammonia total [as N]30DA AVG <= 8 mg/L Mar
002Nitrogen, ammonia total [as N]30DA AVG <= 7.7 mg/L Apr
002Nitrogen, ammonia total [as N]30DA AVG <= 7.5 mg/L May
002Nitrogen, ammonia total [as N]30DA AVG <= 9.6 mg/L Jun
002Nitrogen, ammonia total [as N]30DA AVG <= 6.8 mg/L Jul
002Nitrogen, ammonia total [as N]30DA AVG <= 6.9 mg/L Aug
002Nitrogen, ammonia total [as N]30DA AVG <= 5.7 mg/L Sep
002Nitrogen, ammonia total [as N]30DA AVG <= 7.7 mg/L Oct
002Nitrogen, ammonia total [as N]30DA AVG <= 8 mg/L Nov
002Nitrogen, ammonia total [as N]30DA AVG <= 3.7 mg/L Dec
002Nitrogen, ammonia total [as N]DAILY MX <= 12 mg/L Jan
002Nitrogen, ammonia total [as N]DAILY MX <= 13 mg/L Feb
002Nitrogen, ammonia total [as N]DAILY MX <= 18 mg/L Mar
002Nitrogen, ammonia total [as N]DAILY MX <= 25 mg/L Apr
002Nitrogen, ammonia total [as N]DAILY MX <= 21 mg/L May
002Nitrogen, ammonia total [as N]DAILY MX <= 33 mg/L Jun
002Nitrogen, ammonia total [as N]DAILY MX <= 43 mg/L Jul
002Nitrogen, ammonia total [as N]DAILY MX <= 44 mg/L Aug
002Nitrogen, ammonia total [as N]DAILY MX <= 34 mg/L Sep
002Nitrogen, ammonia total [as N]DAILY MX <= 27 mg/L Oct
002Nitrogen, ammonia total [as N]DAILY MX <= 15 mg/L Nov
002Nitrogen, ammonia total [as N]DAILY MX <= 12 mg/L Dec
002Nitrogen, inorganic totalDAILY MX report only all year
002Phosphorus, total [as P]MO TOTAL report only all year
002Phosphorus, total [as P]YA <= 1218 lb/yr all year
002Phosphorus, total [as P]30DA AVG <= 1 mg/L all year
002Oil and greaseINST MAX <= 10 mg/L all year
002Flow, in conduit or thru treatment plant30DA AVG <= .6 MGD all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Chlorine, total residualINST MAX <= .19 mg/L all year
002E. coli30DA AVG <= 913 #/100mL all year
002E. coliMX 7D AV <= 1826 #/100mL all year
002BOD, 5-day, percent removalMO AV MN >= 85 % all year
002Solids, suspended percent removalMO AV MN >= 85 % all year
002Oil and grease visualINST MAX report only all year
300Plant capacity fact. percent of capacity30DA AVG report only all year
300Plant capacity fact. percent of capacity30DA AVG report only all year
300BOD, 5-day, 20 deg. C30DA AVG report only all year
300BOD, 5-day, 20 deg. CMX 7D AV report only all year
300BOD, 5-day, 20 deg. C30DA AVG report only all year
300BOD, 5-day, 20 deg. CMX 7D AV report only all year
300Solids, total suspended30DA AVG report only all year
300Solids, total suspendedMX 7D AV report only all year
300Flow, in conduit or thru treatment plant30DA AVG report only all year
300Flow, in conduit or thru treatment plantDAILY MX report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states