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LakeQuality

Stalker Lake

Yuma County, Colorado20 acresView mapDirections

NR
Not rated

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.

Water temp
No reading
No gauge
Clarity
6 ft
Secchi · sampled 2022
Level
No reading
No gauge
Trend
No reading
Not enough history
  • Public access
  • Limited data

Stalker Lake in Yuma County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6 ft visibility. Phosphorus: 12 µg/L. Chlorophyll-a (algae): 1.6 µg/L. Surface area: 20 acres.

Clarity
6 ft
Area
20 acres
Public access
Yes
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Watch Stalker Lake’s letter

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Why Stalker 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 Stalker Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, phosphorus 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 CDPHE and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.

Stalker Lake is a 20-acre lake in Yuma County, Colorado. Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, CDPHE, last sampled 2022-07-12. Grade methodology: LakeQuality methodology.

What Stalker Lake is good for

From access and monitoring records, not editorial picks.

  • Boat launch1 documented ramp

Swimming Safety

Not rated

Limited data

The letter is not a swimming clearance. Check local advisories before you swim.

Get alerts for Stalker Lake

Water quality measurements for Stalker Lake

These readings exist but are not enough for an A–F grade — see why.

Murky, only visible to about 6 ft. Phosphorus 12 µg/L. Chlorophyll-a 1.6 µg/L. TSI 42.

MetricValueGrade
Water Clarity (Secchi Depth)6 ftNot graded
Phosphorus12 µg/LNot graded
Chlorophyll-a (Algae)1.6 µg/LNot graded
Trophic State Index (TSI)42Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Surface Area20 acres
Public AccessYes

No bathymetric survey has been published for Stalker Lake, so its depth is not documented here.

Recreation & Access

1
Boat Landings
Yes
Public Access
  • Stalker Lake State Wildlife AreaPublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Fishing Stalker Lake

Reservoir Info (USACE NID)

Stalker Lake is a man-made reservoir impounded by the Chief Creek #4 (completed 1956), built primarily for fish and wildlife pond on the Chief Creek; earth-type dam, 22 ft tall and 1,100 ft long.

Surface area
20 ac
Normal storage
107 ac-ft
Max storage
291 ac-ft
Drainage area
15 sq mi
Hazard class
Significant
Owner
COLORADO PARKS AND WILDLIFE (TAYLOR, MARGARET)

Source: USACE National Inventory of Dams, NID ID CO00389 · Operator website

Graded lakes near Stalker Lake

Stalker Lake has no grade, but these lakes within a short drive do.

Nearby Lakes in Yuma County

Frequently asked questions about Stalker Lake

Where is Stalker Lake?

Stalker Lake is a lake in Yuma County, Colorado. 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 Stalker Lake?

Stalker Lake in Yuma County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6 ft visibility. Phosphorus: 12 µg/L. Chlorophyll-a (algae): 1.6 µg/L. Surface area: 20 acres.

Is Stalker Lake safe to swim in?

The letter is not a swimming clearance. Check local advisories before you swim.

Are there boat ramps on Stalker Lake?

Stalker Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Stalker Lake State Wildlife Area. Public access is listed as yes.

Where this data comes from

4 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Colorado Dept. of Public Health & Environment-WQCD21COL001_WQX4 samples · 2022

Analytical methods

  • Secchi disk depth measurement
  • Phosphorus by Colorimetry
  • 10200 H ~ Chlorophyll a-b-c Determination
  • Nitrogen in Water by Pyrolysis Detection
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.

Other records on this page

Named boat-access points from the USGS National Boat Ramps inventory