CEMEX Construction Materials South LLC

NPDES permit CO0048771 · Minor NON-POTW · administratively continued, expires 2017-10-31 · 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 2017-10-31 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
1required values missing, on 1 form(s)
1of 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 (48)

OutfallParameterStatisticLimitMonths
005pHMINIMUM >= 6 SU all year
005pHMINIMUM >= 6 SU all year
005pHMAXIMUM report only all year
005pHMAXIMUM <= 9 SU all year
005Solids, total suspended30DA AVG <= 30 mg/L all year
005Solids, total suspendedMX 7D AV <= 45 mg/L all year
005Oil and greaseINST MAX <= 10 mg/L all year
005Flow, in conduit or thru treatment plant30DA AVG <= .00009 MGD all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005Oil and grease visualINST MAX report only all year
006pHMINIMUM >= 6.5 SU all year
006pHMINIMUM >= 6.5 SU all year
006pHMAXIMUM report only all year
006pHMAXIMUM <= 9 SU all year
006Cyanide, total [as CN]DAILY MX report only all year
006Chloride [as Cl]30DA AVG report only all year
006Arsenic, total recoverable30DA AVG report only all year
006Iron, total recoverable30DA AVG report only all year
006Iron, dissolved [as Fe]30DA AVG report only all year
006Manganese, dissolved [as Mn]30DA AVG report only all year
006Manganese, dissolved [as Mn]DAILY MX report only all year
006Chromium, total recoverableDAILY MX report only all year
006Chromium, hexavalent dissolved [as Cr]30DA AVG report only all year
006Zinc, potentially dissolved30DA AVG report only all year
006Zinc, potentially dissolvedDAILY MX report only all year
006Silver, potentially dissolved30DA AVG report only all year
006Silver, potentially dissolvedDAILY MX report only all year
006Copper, potentially dissolved30DA AVG report only all year
006Copper, potentially dissolvedDAILY MX report only all year
006Arsenic, potentially dissolvedDAILY MX report only all year
006Cadmium, potentially dissolvd30DA AVG report only all year
006Lead, potentially dissolvd30DA AVG report only all year
006Lead, potentially dissolvd30DA AVG <= 37 ug/L all year
006Lead, potentially dissolvdDAILY MX report only all year
006Lead, potentially dissolvdDAILY MX report only all year
006Nickel, potentially dissolvd30DA AVG report only all year
006Nickel, potentially dissolvdDAILY MX report only all year
006Selenium, potentially dissolvd30DA AVG report only all year
006Selenium, potentially dissolvdDAILY MX report only all year
006Oil and greaseINST MAX <= 10 mg/L all year
006Chromium, trivalent total recoverableDAILY MX report only all year
006Flow, in conduit or thru treatment plant30DA AVG <= .033 MGD all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Mercury, total low level30DA AVG report only all year
006Sulfide-hydrogen sulfide [undissociated]30DA AVG report only all year
006Sulfate30DA AVG report only all year
006Boron, total30DA AVG report only all year
006Oil 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