How Clean Is Lake Macbride?
Lake Macbride is nutrient-rich, with elevated phosphorus and algae. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 2.9 ft. Phosphorus: 59 µg/L. Chlorophyll-a (algae): 28.5 µg/L. Trophic State Index: 63.
Cleanliness Snapshot
| Metric | Lake Macbride | Iowa avg |
|---|---|---|
| Water Clarity (Secchi) | 2.9 ft | — |
| Phosphorus | 59 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 28.5 µg/L | <10 = clean |
| Trophic State Index | 63 | <50 = clean |
How does Lake Macbride compare?
Lake Macbride's readings match or beat the Iowa state average. It ranks #2 of 3 lakes in Johnson County on nutrient and algae readings. Multi-year monitoring data shows water quality is declining based on 5 years of records.
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