Gunnison County

NPDES permit CO0048873 · Minor POTW · administratively continued, expires 2024-09-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file
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 2024-09-30 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)
6of 26 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 (14)

OutfallParameterStatisticLimitMonths
002BOD, 5-day, 20 deg. C30DA AVG <= 13.2 lb/d all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU all year
002Oil and greaseINST MAX <= 10 mg/L all year
002Flow, in conduit or thru treatment plant30DA AVG <= .009 MGD all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Chlorine, total residualINST MAX <= .5 mg/L all year
002Solids, total dissolved30DA AVG report only all year
002Solids, total dissolvedDAILY MX report only all year
002Solids, total dissolved30DA AVG report only all year
002Oil and grease visualINST MAX report only all year
INFBOD, 5-day, 20 deg. C30DA AVG report only all year
INFFlow, in conduit or thru treatment plant30DA AVG report only all year
INFFlow, 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