Velarion Records
Follow this permit Velarion Records emails you this permit’s record, cited to the public filing, and tells you when the register changes it. Free.
One more press on the next page sends it; there is no link to click in an email. The continuous daily watch on every change is the paid alert. Unsubscribe any time.
Also free: The Pay Desk, the weekly executive pay briefing.

Clean Water Act discharge permit · NPDES WYR320347

RED MOUNTAIN GYPSUM QUARRY (LQD PT0297), (Unknown City), WY: NPDES WYR320347 discharge permit, effluent exceedances, inspections, penalties

RED MOUNTAIN GYPSUM QUARRY (LQD PT0297), held by Mountain Cement Company, holds NPDES permit WYR320347. EPA’s file records it issued April 1, 2018 and expiring March 31, 2023.

RED MOUNTAIN GYPSUM QUARRY (LQD PT0297), (Unknown City), Wyoming: Coverage under a general permit WYR320347, held by Mountain Cement Company; Industrial stormwater; Administratively continued (past its expiration date and still in force until reissued); issued April 1, 2018, term to March 31, 2023.

Wyoming holds 209 Industrial stormwater coverages of this permit type in EPA’s file; 46 were issued before WYR320347. Mountain Cement Company holds 4 permits in Wyoming.

Other permits held by Mountain Cement Company

Coverages issued nearest WYR320347

RED MOUNTAIN GYPSUM QUARRY (LQD PT0297) among its neighbors

EPA’s permit file holds 6 discharge permits in the Harney Creek subwatershed (HUC 101800100406), WYR320347 among them. Its county holds 45, 1 of them major permits; WYR320347 is a minor permit.

Other permits in the Harney Creek subwatershed (HUC 101800100406)

What the register holds for RED MOUNTAIN GYPSUM QUARRY (LQD PT0297): its NPDES ID, its permit type and status, its dates, its address in (Unknown City), Wyoming. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES WYR320347.

Identity

Facility as filedRED MOUNTAIN GYPSUM QUARRY (LQD PT0297)
Permittee as filedMountain Cement Company
NPDES IDWYR320347
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedApril 1, 2018
Expiration dateMarch 31, 2023
Address(Unknown City), WY
SubwatershedHarney Creek (HUC 101800100406)
SIC1499 – Miscellaneous Nonmetallic Minerals

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES WYR320347.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES WYR320347.

Inspections

EPA’s inspection file holds no inspection for NPDES WYR320347.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES WYR320347.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, WYR320347.

Start the watch

How often?
  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

How we handle your data → Privacy

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

The RED MOUNTAIN GYPSUM QUARRY (LQD PT0297) is one of 6 storm water industrial permits in Albany County on EPA's NPDES register, and it is one of 6 NPDES permits in the Harney Creek subwatershed. The permit has no pollutants under a numeric limit and no pollutants with an effluent exceedance, and 0.0% of its 6 Albany County storm water industrial peers have a violation on file.