How Clean Is E A Patterson Lake?
E A Patterson Lake has fair water quality — typical of lakes with moderate nutrient enrichment. It received a water quality grade of C (Fair) based on EPA monitoring data. Water clarity (Secchi depth): 6 ft. Phosphorus: 246 µg/L. Chlorophyll-a (algae): 15.9 µg/L. Trophic State Index: 64.
Cleanliness Snapshot
| Metric | E A Patterson Lake | North Dakota avg |
|---|---|---|
| Overall Grade | C | C |
| Water Clarity (Secchi) | 6 ft | — |
| Phosphorus | 246 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 15.9 µg/L | <10 = clean |
| Trophic State Index | 64 | <50 = clean |
How does E A Patterson Lake compare?
E A Patterson Lake's grade of C matches or beats the North Dakota state average of C. It ranks #1 of 3 lakes in Stark County by water quality score. Multi-year monitoring data shows water quality is stable based on 4 years of records.
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