Cotter Corporation/Highbury Resources

NPDES permit CO0036251 · Minor NON-POTW · administratively continued, expires 2016-05-31 · 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 2016-05-31 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)
10of 75 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 (113)

OutfallParameterStatisticLimitMonths
001Oxygen demand, chem. [high level] [COD]30DA AVG <= 100 mg/L all year
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 200 mg/L all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspended30DA AVG <= 20 mg/L all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Zinc, total recoverable30DA AVG <= 500 ug/L all year
001Zinc, total recoverableDAILY MX <= 1000 ug/L all year
001Oil and greaseINST MAX <= 10 mg/L all year
001Radium 226, total30DA AVG report only all year
001Radium 226, totalDAILY MX <= 30 pCi/L all year
001Radium 226, dissolved30DA AVG <= 3 pCi/L all year
001Radium 226, dissolvedDAILY MX <= 10 pCi/L all year
001Radium 226 + radium 228, total30DA AVG <= 5 pCi/L all year
001Radium 226 + radium 228, totalDAILY MX report only all year
001Uranium, total30DA AVG <= 2000 ug/L all year
001Uranium, totalDAILY MX <= 4000 ug/L all year
001Flow, in conduit or thru treatment plant30DA AVG <= .2 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Solids, total dissolved30DA AVG report only all year
001Solids, total dissolvedDAILY MX report only all year
001Oil and grease visualINST MAX report only all year
001BOxygen demand, chem. [high level] [COD]30DA AVG <= 100 mg/L all year
001BOxygen demand, chem. [high level] [COD]DAILY MX <= 200 mg/L all year
001BpHMINIMUM >= 6.5 SU all year
001BpHMAXIMUM <= 9 SU all year
001BSolids, total suspended30DA AVG <= 20 mg/L all year
001BSolids, total suspendedDAILY MX <= 30 mg/L all year
001BZinc, total recoverable30DA AVG <= 500 ug/L all year
001BZinc, total recoverableDAILY MX <= 1000 ug/L all year
001BRadium 226, total30DA AVG report only all year
001BRadium 226, totalDAILY MX <= 30 pCi/L all year
001BRadium 226, dissolved30DA AVG <= 3 pCi/L all year
001BRadium 226, dissolvedDAILY MX <= 10 pCi/L all year
001BRadium 226 + radium 228, total30DA AVG <= 5 pCi/L all year
001BRadium 226 + radium 228, totalDAILY MX report only all year
001BUranium, total30DA AVG <= 2000 ug/L all year
001BUranium, totalDAILY MX <= 4000 ug/L all year
001BRainfall30DA AVG report only all year
001BRainfallDAILY MX report only all year
001BFlow, in conduit or thru treatment plant30DA AVG report only all year
001BFlow, in conduit or thru treatment plantDAILY MX report only all year
001BSolids, total dissolved30DA AVG report only all year
001BSolids, total dissolvedDAILY MX report only all year
001BOil and grease visualINST MAX report only all year
002Oxygen demand, chem. [high level] [COD]30DA AVG <= 100 mg/L all year
002Oxygen demand, chem. [high level] [COD]DAILY MX <= 200 mg/L all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspended30DA AVG <= 20 mg/L all year
002Solids, total suspendedDAILY MX <= 30 mg/L all year
002Zinc, total recoverable30DA AVG <= 500 ug/L all year
002Zinc, total recoverableDAILY MX <= 1000 ug/L all year
002Oil and greaseINST MAX <= 10 mg/L all year
002Radium 226, total30DA AVG report only all year
002Radium 226, totalDAILY MX <= 30 pCi/L all year
002Radium 226, dissolved30DA AVG <= 3 pCi/L all year
002Radium 226, dissolvedDAILY MX <= 10 pCi/L all year
002Radium 226 + radium 228, total30DA AVG <= 5 pCi/L all year
002Radium 226 + radium 228, totalDAILY MX report only all year
002Uranium, total30DA AVG <= 2000 ug/L all year
002Uranium, totalDAILY MX <= 4000 ug/L all year
002Flow, in conduit or thru treatment plant30DA AVG <= .3 MGD all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Solids, total dissolved30DA AVG report only all year
002Solids, total dissolvedDAILY MX report only all year
002Oil and grease visualINST MAX report only all year
002BOxygen demand, chem. [high level] [COD]30DA AVG <= 100 mg/L all year
002BOxygen demand, chem. [high level] [COD]DAILY MX <= 200 mg/L all year
002BpHMINIMUM >= 6.5 SU all year
002BpHMAXIMUM <= 9 SU all year
002BSolids, total suspended30DA AVG <= 20 mg/L all year
002BSolids, total suspendedDAILY MX <= 30 mg/L all year
002BZinc, total recoverable30DA AVG <= 500 ug/L all year
002BZinc, total recoverableDAILY MX <= 1000 ug/L all year
002BRadium 226, total30DA AVG report only all year
002BRadium 226, totalDAILY MX <= 30 pCi/L all year
002BRadium 226, dissolved30DA AVG <= 3 pCi/L all year
002BRadium 226, dissolvedDAILY MX <= 10 pCi/L all year
002BRadium 226 + radium 228, total30DA AVG <= 5 pCi/L all year
002BRadium 226 + radium 228, totalDAILY MX report only all year
002BUranium, total30DA AVG <= 2000 ug/L all year
002BUranium, totalDAILY MX <= 4000 ug/L all year
002BRainfall30DA AVG report only all year
002BRainfallDAILY MX report only all year
002BFlow, in conduit or thru treatment plant30DA AVG report only all year
002BFlow, in conduit or thru treatment plantDAILY MX report only all year
002BSolids, total dissolved30DA AVG report only all year
002BSolids, total dissolvedDAILY MX report only all year
002BOil and grease visualINST MAX report only all year
002COxygen demand, chem. [high level] [COD]30DA AVG <= 100 mg/L all year
002COxygen demand, chem. [high level] [COD]DAILY MX <= 200 mg/L all year
002CpHMINIMUM >= 6.5 SU all year
002CpHMAXIMUM <= 9 SU all year
002CSolids, total suspended30DA AVG <= 20 mg/L all year
002CSolids, total suspendedDAILY MX <= 30 mg/L all year
002CZinc, total recoverable30DA AVG <= 500 ug/L all year
002CZinc, total recoverableDAILY MX <= 1000 ug/L all year
002CRadium 226, total30DA AVG report only all year
002CRadium 226, totalDAILY MX <= 30 pCi/L all year
002CRadium 226, dissolved30DA AVG <= 3 pCi/L all year
002CRadium 226, dissolvedDAILY MX <= 10 pCi/L all year
002CRadium 226 + radium 228, total30DA AVG <= 5 pCi/L all year
002CRadium 226 + radium 228, totalDAILY MX report only all year
002CUranium, total30DA AVG <= 2000 ug/L all year
002CUranium, totalDAILY MX <= 4000 ug/L all year
002CRainfall30DA AVG report only all year
002CRainfallDAILY MX report only all year
002CFlow, in conduit or thru treatment plant30DA AVG report only all year
002CFlow, in conduit or thru treatment plantDAILY MX report only all year
002CSolids, total dissolved30DA AVG report only all year
002CSolids, total dissolvedDAILY MX report only all year
002COil and grease visualINST MAX 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