Denbury Onshore, LLC

NPDES permit WY0052370 · Minor NON-POTW · expired 2025-01-31 · EPA's file as of 2026-09-26

Keep this permit as a site — opens New site at EPA's facility point (43.754767, -105.840644); you set the radius.

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.

These are the last limits EPA's file holds for this permit, from an earlier version of it (version 0 in EPA's file): its current version carries none yet. Read your permit: a renewal can change them.

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

0values over a limit
0required values missing, on 0 form(s)
14of 14 forms filed late

Last period with anything received: 2025-12-31.

Reporting

Reports are due about 46 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

How strict are these limits?

Each concentration limit against the same limit in comparable permits. Where it appears more than once, its strictest value.

2 other limits: fewer than 20 comparable permits.

Limits in force (107)

OutfallParameterStatisticLimitMonths
002Specific conductancedaily maximum <= 2000 umho/cm all year
002pHinstantaneous minimum >= 6.5 SU all year
002pHinstantaneous maximum <= 9 SU all year
002Alkalinity, total [as CaCO3]daily maximum report only all year
002Calcium, dissolved [as Ca]daily maximum report only all year
002Magnesium, dissolved [as Mg]daily maximum report only all year
002Sodium, dissolved [as Na]daily maximum report only all year
002Sodium adsorption ratiodaily maximum <= 14 Ratio all year
002Arsenic, total recoverabledaily maximum <= 3.3 ug/L all year
002Barium, total recoverabledaily maximum <= 1800 ug/L all year
002Iron, dissolved [as Fe]daily maximum <= 1000 ug/L all year
002Chloridedaily maximum <= 46 mg/L all year
002Bicarbonate as [CaCO3]daily maximum report only all year
002Flowdaily maximum report only all year
002Flowmonthly average report only all year
005Specific conductancedaily maximum <= 2000 umho/cm all year
005pHinstantaneous minimum >= 6.5 SU all year
005pHinstantaneous maximum <= 9 SU all year
005Alkalinity, total [as CaCO3]daily maximum report only all year
005Calcium, dissolved [as Ca]daily maximum report only all year
005Magnesium, dissolved [as Mg]daily maximum report only all year
005Sodium, dissolved [as Na]daily maximum report only all year
005Sodium adsorption ratiodaily maximum <= 14 Ratio all year
005Arsenic, total recoverabledaily maximum <= 3.3 ug/L all year
005Barium, total recoverabledaily maximum <= 1800 ug/L all year
005Iron, dissolved [as Fe]daily maximum <= 1000 ug/L all year
005Chloridedaily maximum <= 46 mg/L all year
005Bicarbonate as [CaCO3]daily maximum report only all year
005Flowdaily maximum report only all year
005Flowmonthly average report only all year
007Specific conductancedaily maximum <= 2000 umho/cm all year
007pHinstantaneous minimum >= 6.5 SU all year
007pHinstantaneous maximum <= 9 SU all year
007Alkalinity, total [as CaCO3]daily maximum report only all year
007Calcium, dissolved [as Ca]daily maximum report only all year
007Magnesium, dissolved [as Mg]daily maximum report only all year
007Sodium, dissolved [as Na]daily maximum report only all year
007Sodium adsorption ratiodaily maximum <= 14 Ratio all year
007Arsenic, total recoverabledaily maximum <= 3.3 ug/L all year
007Barium, total recoverabledaily maximum <= 1800 ug/L all year
007Iron, dissolved [as Fe]daily maximum <= 1000 ug/L all year
007Chloridedaily maximum <= 46 mg/L all year
007Bicarbonate as [CaCO3]daily maximum report only all year
007Flowdaily maximum report only all year
007Flowmonthly average report only all year
009Specific conductancedaily maximum <= 2000 umho/cm all year
009pHinstantaneous minimum >= 6.5 SU all year
009pHinstantaneous maximum <= 9 SU all year
009Alkalinity, total [as CaCO3]daily maximum report only all year
009Calcium, dissolved [as Ca]daily maximum report only all year
009Magnesium, dissolved [as Mg]daily maximum report only all year
009Sodium, dissolved [as Na]daily maximum report only all year
009Sodium adsorption ratiodaily maximum <= 14 Ratio all year
009Arsenic, total recoverabledaily maximum <= 3.3 ug/L all year
009Barium, total recoverabledaily maximum <= 1800 ug/L all year
009Iron, dissolved [as Fe]daily maximum <= 1000 ug/L all year
009Chloridedaily maximum <= 46 mg/L all year
009Bicarbonate as [CaCO3]daily maximum report only all year
009Flowdaily maximum report only all year
009Flowmonthly average report only all year
010Specific conductancedaily maximum <= 2000 umho/cm all year
010pHinstantaneous minimum >= 6.5 SU all year
010pHinstantaneous maximum <= 9 SU all year
010Alkalinity, total [as CaCO3]daily maximum report only all year
010Calcium, dissolved [as Ca]daily maximum report only all year
010Magnesium, dissolved [as Mg]daily maximum report only all year
010Sodium, dissolved [as Na]daily maximum report only all year
010Sodium adsorption ratiodaily maximum <= 14 Ratio all year
010Arsenic, total recoverabledaily maximum <= 3.3 ug/L all year
010Barium, total recoverabledaily maximum <= 1800 ug/L all year
010Iron, dissolved [as Fe]daily maximum <= 1000 ug/L all year
010Chloridedaily maximum <= 46 mg/L all year
010Bicarbonate as [CaCO3]daily maximum report only all year
010Flowdaily maximum report only all year
010Flowmonthly average report only all year
011Specific conductancedaily maximum <= 2000 umho/cm all year
011pHinstantaneous minimum >= 6.5 SU all year
011pHinstantaneous maximum <= 9 SU all year
011Alkalinity, total [as CaCO3]daily maximum report only all year
011Calcium, dissolved [as Ca]daily maximum report only all year
011Magnesium, dissolved [as Mg]daily maximum report only all year
011Sodium, dissolved [as Na]daily maximum report only all year
011Sodium adsorption ratiodaily maximum <= 14 Ratio all year
011Arsenic, total recoverabledaily maximum <= 3.3 ug/L all year
011Barium, total recoverabledaily maximum <= 1800 ug/L all year
011Iron, dissolved [as Fe]daily maximum <= 1000 ug/L all year
011Chloridedaily maximum <= 46 mg/L all year
011Bicarbonate as [CaCO3]daily maximum report only all year
011Flowdaily maximum report only all year
011Flowmonthly average report only all year
026Specific conductancedaily maximum <= 2000 umho/cm all year
026pHinstantaneous minimum >= 6.5 SU all year
026pHinstantaneous maximum <= 9 SU all year
026Alkalinity, total [as CaCO3]daily maximum report only all year
026Calcium, dissolved [as Ca]daily maximum report only all year
026Magnesium, dissolved [as Mg]daily maximum report only all year
026Sodium, dissolved [as Na]daily maximum report only all year
026Sodium adsorption ratiodaily maximum <= 14 Ratio all year
026Arsenic, total recoverabledaily maximum <= 3.3 ug/L all year
026Barium, total recoverabledaily maximum <= 1800 ug/L all year
026Iron, dissolved [as Fe]daily maximum <= 1000 ug/L all year
026Chloridedaily maximum <= 46 mg/L all year
026Bicarbonate as [CaCO3]daily maximum report only all year
026Flowdaily maximum report only all year
026Flowmonthly average report only all year
SUMFlowmonthly average report only all year
SUMFlowdaily maximum <= 1.15 MGD 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