North Mouse Creek Lake
McMinn County, TennesseeView mapDirections
TDEC publishes the water-quality measurements for North Mouse Creek Lake. Here is what has been measured.
- Impaired · Mercury
- Limited data
North Mouse Creek Lake in McMinn County, Tennessee has water-quality measurements published by TDEC, shown here as reported. Phosphorus: 67 µg/L.
North Mouse Creek Lake is a lake in McMinn County, Tennessee.
Source: EPA Water Quality Portal sampling records, TDEC, last sampled 2012-07-05. Methodology: how these readings are compared.
Swimming conditions
No readingBacteria advisory
Nutrient and algae readings are not a swimming clearance. North Mouse Creek Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, pathogens (E. coli, fecal). Check local advisories before you swim.
Whether North Mouse Creek Lake is safe to swim in today is a call for the Tennessee Department of Environment and Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for North Mouse Creek Lake
These are the measurements TDEC publishes for North Mouse Creek Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 67 µg/L. TSI 65.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 67µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 65 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing North Mouse Creek Lake
EPA Impairment Status
North Mouse Creek Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Recreation.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit TN06020002008_1000 · Official waterbody report
Nearby Lakes in McMinn County
Frequently asked questions about North Mouse Creek Lake
Where is North Mouse Creek Lake?
- North Mouse Creek Lake is a lake in McMinn County, Tennessee. Its water-quality measurements are published by TDEC and shown on this page as reported.
What is the water quality of North Mouse Creek Lake?
- North Mouse Creek Lake in McMinn County, Tennessee has water-quality measurements published by TDEC, shown here as reported. Phosphorus: 67 µg/L.
Is North Mouse Creek Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. North Mouse Creek Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, pathogens (E. coli, fecal). Check local advisories before you swim.
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Where this data comes from
1 measurement from 1 monitoring station, 2012. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- TDEC Division of Water Resources
TDECWR_WQX1 sample · 2012
Analytical methods
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database