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Water Supply, Lone Wolf, Oklahoma. NPDES permit OK0044202, in force until Jul 31, 2029. Last 12 months: over a limit 19 times (last August 2026), 3 required values missing, 1 of 15 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Selenium, total [as Se], monthly average | 6.47 ug/L | ≤ 5.63 ug/L | 15% |
| November 2025 | Selenium, total [as Se], daily maximum | 18.1 ug/L | ≤ 8.21 ug/L | 120% |
| November 2025 | Selenium, total [as Se], monthly average | 18.1 ug/L | ≤ 5.63 ug/L | 221% |
| December 2025 | Copper, total [as Cu], daily maximum | 197 ug/L | ≤ 149.8 ug/L | 32% |
| December 2025 | Copper, total [as Cu], monthly average | 197 ug/L | ≤ 88.3 ug/L | 123% |
| December 2025 | Selenium, total [as Se], daily maximum | 21.3 ug/L | ≤ 8.21 ug/L | 159% |
| December 2025 | Selenium, total [as Se], monthly average | .011 lb/d | ≤ .01 lb/d | 10% |
| December 2025 | Selenium, total [as Se], monthly average | 21.3 ug/L | ≤ 5.63 ug/L | 278% |
| January 2026 | Selenium, total [as Se], daily maximum | 34.1 ug/L | ≤ 8.21 ug/L | 315% |
| January 2026 | Selenium, total [as Se], monthly average | .024 lb/d | ≤ .01 lb/d | 140% |
| January 2026 | Selenium, total [as Se], monthly average | 34.1 ug/L | ≤ 5.63 ug/L | 506% |
| February 2026 | Selenium, total [as Se], monthly average | 6.17 ug/L | ≤ 5.63 ug/L | 10% |
| April 2026 | Selenium, total [as Se], daily maximum | 8.25 ug/L | ≤ 8.21 ug/L | 0% |
| April 2026 | Selenium, total [as Se], monthly average | .099 lb/d | ≤ .01 lb/d | 890% |
| April 2026 | Selenium, total [as Se], monthly average | 8.25 ug/L | ≤ 5.63 ug/L | 47% |
| May 2026 | Selenium, total [as Se], monthly average | .08 lb/d | ≤ .01 lb/d | 700% |
| May 2026 | Selenium, total [as Se], monthly average | 6.57 ug/L | ≤ 5.63 ug/L | 17% |
| June 2026 | Selenium, total [as Se], monthly average | 6.91 ug/L | ≤ 5.63 ug/L | 23% |
| August 2026 | Selenium, total [as Se], monthly average | 7.29 ug/L | ≤ 5.63 ug/L | 29% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | minimum | ≥ 6.5 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 29.5 lb/d | all year |
| Chloride [as Cl] | monthly average | report only (mg/L) | all year |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year |
| Copper, total [as Cu] | monthly average | ≤ 88.3 ug/L | all year |
| Copper, total [as Cu] | daily maximum | ≤ 149.8 ug/L | all year |
| Copper, total [as Cu] | monthly average | ≤ .13 lb/d | all year |
| Zinc, total [as Zn] | monthly average | ≤ 717 ug/L | all year |
| Zinc, total [as Zn] | daily maximum | ≤ 1327 ug/L | all year |
| Zinc, total [as Zn] | monthly average | ≤ 1.06 lb/d | all year |
| Selenium, total [as Se] | monthly average | ≤ 5.63 ug/L | all year |
| Selenium, total [as Se] | daily maximum | ≤ 8.21 ug/L | all year |
| Selenium, total [as Se] | monthly average | ≤ .01 lb/d | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year |
Cited limits by parameter: Oklahoma's rules and the federal ones.
Same industry: the 49 Water Supply permits in Oklahoma.
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