Grant County, New Mexico · Water Quality Report Card
Bill Evans Lake Deep
Bill Evans Lake Deep in Grant County, New Mexico is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 11.5 ft visibility.
- Clarity
- 11.5 ft
- Mean depth
- ~18 ft est.
- Type
- Mesotrophic
Bill Evans Lake Deep is a mesotrophic lake in Grant County, New Mexico with an estimated average depth of about 18 feet.
Source: EPA Water Quality Portal sampling records, NMED, last sampled 2019-10-01. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not rated for swimming — there is not enough monitoring data to judge this lake
Water Quality Grade: Not rated
Good clarity, visible to about 11.5 ft. Trophic State Index: 42.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11.5 ft | |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 42 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Average Depth | ~18 ft est. |
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. New Mexico has not published bathymetry for Bill Evans Lake Deep.
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Fishing Bill Evans Lake Deep
Location
Nearby Lakes in Grant County
Explore Bill Evans Lake Deep across LakeGrade
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Mesotrophic Lakes in New Mexico
More records, surveys & data sources
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Where this data comes from
2 measurements from 1 monitoring station, 2019. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- NM Environmental Dept./SWQB
21NMEX_WQX2 samples · 2019
Monitoring station identifiers (1)
Grade thresholds come from the U.S. EPA National Lakes Assessment 2022 Technical Support Document (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated.
Data Sources
Water quality data from the EPA Water Quality Portal
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2019-10-01
Monitoring stations: 1