Mckay Wash Tinaja Lake
Clark 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.
- Limited data
Mckay Wash Tinaja Lake in Clark County, Nevada is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 155 µg/L.
- Phosphorus
- 155 µg/L
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Watch Mckay Wash Tinaja Lake’s letter
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Why Mckay Wash Tinaja 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 Mckay Wash Tinaja Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded phosphorus, but not water clarity and algae (chlorophyll-a).
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.
Mckay Wash Tinaja Lake is a lake in Clark County, Nevada.
Source: EPA Water Quality Portal sampling records, NDEP, last sampled 2022-08-03. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Mckay Wash Tinaja Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Phosphorus 155 µg/L. TSI 77.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 155 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 77 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Fishing Mckay Wash Tinaja Lake
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Frequently asked questions about Mckay Wash Tinaja Lake
Where is Mckay Wash Tinaja Lake?
- Mckay Wash Tinaja Lake is a lake in Clark 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 Mckay Wash Tinaja Lake?
- Mckay Wash Tinaja Lake in Clark County, Nevada is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 155 µg/L.
Is Mckay Wash Tinaja Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Explore Mckay Wash Tinaja Lake across LakeQuality
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Where this data comes from
1 measurement from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- USGS Nevada Water Science Center
USGS-NV1 sample · 2022
Analytical methods
- P, wu, WCA, persulfate CF color
Monitoring station identifiers (1)
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.