Sparks Marina Cove Lake
Washoe County, NevadaView mapDirections
Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.
- Impaired · Metals (other than mercury)
- Limited data
Sparks Marina Cove Lake in Washoe County, Nevada is not rated for water quality — its monitoring record does not meet the evidence bar.
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Watch Sparks Marina Cove Lake’s letter
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Why Sparks Marina Cove Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Sparks Marina Cove Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by NDEP and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Sparks Marina Cove Lake is a lake in Washoe County, Nevada.
Source: EPA Water Quality Portal sampling records, NDEP, last sampled 2014-03-12. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Sparks Marina Cove Lake is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury), nutrients (phosphorus, nitrogen), oxygen depletion (low DO), radiation, salinity / chlorides. Check local advisories before you swim.
Water quality measurements for Sparks Marina Cove Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Fishing Sparks Marina Cove Lake
EPA Impairment Status
Sparks Marina Cove Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit NV06-TR-65_00 · Official waterbody report · Matched by proximity (0.3 km)
Graded lakes near Sparks Marina Cove Lake
Sparks Marina Cove Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Washoe County
Frequently asked questions about Sparks Marina Cove Lake
Where is Sparks Marina Cove Lake?
- Sparks Marina Cove Lake is a lake in Washoe County, Nevada. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Sparks Marina Cove Lake?
- Sparks Marina Cove Lake in Washoe County, Nevada is not rated for water quality — its monitoring record does not meet the evidence bar.
Is Sparks Marina Cove Lake safe to swim in?
- The letter is not a swimming clearance. Sparks Marina Cove Lake is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury), nutrients (phosphorus, nitrogen), oxygen depletion (low DO), radiation, salinity / chlorides. Check local advisories before you swim.
Explore Sparks Marina Cove Lake across LakeQuality
11.2 mi away · 30 ft
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Where this data comes from
4 measurements from 2 monitoring stations, 2014. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Nevada Division of Environmental Protection
21NEV1_WQX4 samples · 2014
Analytical methods
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
- 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (2)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database