Federal Highway Administration - Central Federal Lands

NPDES permit CO0034860 · Minor FEDERAL · effective, expires 2030-12-31 · 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.

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

0values over a limit
0required values missing, on 0 form(s)
0of 17 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among CO permits in EPA's filings — check your permit).

Limits in force (33)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigrade30DA AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspended30DA AVG report only all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Oil & GreaseDAILY MX <= 10 mg/L all year
001Phosphorus, total [as P]30DA AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Selenium, potentially dissolvd30DA AVG report only all year
001Selenium, potentially dissolvdDAILY MX report only all year
001Benzene, ethylbenzene, toluene, xylene combination30DA AVG report only all year
001Benzene, ethylbenzene, toluene, xylene combinationDAILY MX report only all year
001Benzene30DA AVG report only all year
001BenzeneDAILY MX report only all year
0011,1-Dichloroethane30DA AVG report only all year
0011,1-DichloroethaneDAILY MX <= 700 ug/L all year
0011,1,1-Trichloroethane30DA AVG <= 200 ug/L all year
0011,1,1-TrichloroethaneDAILY MX report only all year
001Vinyl chloride30DA AVG <= 1 ug/L all year
001Vinyl chlorideDAILY MX report only all year
001Flow, in conduit or thru treatment plant30DA AVG <= .029 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX <= .043 MGD all year
0011,1-Dichloroethene30DA AVG <= 7 ug/L all year
0011,1-DichloroetheneDAILY MX report only all year
001Trichloroethene30DA AVG <= 5 ug/L all year
001TrichloroetheneDAILY MX report only all year
0011,4-Dioxane30DA AVG report only all year
0011,4-DioxaneDAILY MX report only all year
001Oil and grease visualINST MAX report only all year
001Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubiaDAILY MX <= 0 pass=0;fail=1 all year
001Pass/Fail Static Renewal 96Hr Acute Pimephales PromelasDAILY MX <= 0 pass=0;fail=1 all year
RW011,4-DioxaneAH report only Jan, Feb, Mar, Jul, Aug, Sep

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