Glendo Reservoir Lacustrine Littoral
Platte County, Wyoming23,320 acresView 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.
- Public access
- Limited data
Glendo Reservoir Lacustrine Littoral in Platte County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.6 ft visibility. Phosphorus: 20 µg/L. Surface area: 23320 acres.
- Clarity
- 6.6 ft
- Area
- 23,320 acres
- Phosphorus
- 20 µg/L
- Trend
- ↓ Declining
- Public access
- Yes
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Watch Glendo Reservoir Lacustrine Littoral’s letter
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Why Glendo Reservoir Lacustrine Littoral 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 Glendo Reservoir Lacustrine Littoral, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity and phosphorus, but not 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 Wyoming DEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Glendo Reservoir Lacustrine Littoral is a 23,320-acre lake in Platte County, Wyoming. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2012-07-25. Grade methodology: LakeQuality methodology.
What Glendo Reservoir Lacustrine Littoral is good for
From access and monitoring records, not editorial picks.
- Big water23,320 acres
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Glendo Reservoir Lacustrine Littoral
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 6.6 ft. Phosphorus 20 µg/L. TSI 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.6 ft | Not graded |
| Phosphorus | 20 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 23,320 acres |
| Public Access | Yes |
No bathymetric survey has been published for Glendo Reservoir Lacustrine Littoral, so its depth is not documented here.
Fishing Glendo Reservoir Lacustrine Littoral
Water Quality Trend: ↓ Declining
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.088 m/yr | 2 |
| Phosphorus | → Stable | 0 µg/L/yr | 3 |
Reservoir Info (USACE NID)
Glendo Reservoir Lacustrine Littoral is a man-made reservoir impounded by the Glendo Dam (completed 1958), built primarily for flood risk reduction on the North Platte River; earth-type dam, 196 ft tall and 2,096 ft long.
- Surface area
- 23,320 ac
- Normal storage
- 454,337 ac-ft
- Max storage
- 1,118,653 ac-ft
- Drainage area
- 15,545 sq mi
- Hazard class
- High
- Owner
- BUREAU OF RECLAMATION
All listed purposes: Flood Risk Reduction;Irrigation;Fish and Wildlife Pond;Recreation;Hydroelectric.
Source: USACE National Inventory of Dams, NID ID WY01291 · Operator website · Matched by proximity (0.96 km)
Graded lakes near Glendo Reservoir Lacustrine Littoral
Glendo Reservoir Lacustrine Littoral has no grade, but these lakes within a short drive do.
Nearby Lakes in Platte County
Frequently asked questions about Glendo Reservoir Lacustrine Littoral
Where is Glendo Reservoir Lacustrine Littoral?
- Glendo Reservoir Lacustrine Littoral is a lake in Platte County, Wyoming. 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 Glendo Reservoir Lacustrine Littoral?
- Glendo Reservoir Lacustrine Littoral in Platte County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.6 ft visibility. Phosphorus: 20 µg/L. Surface area: 23320 acres.
Is Glendo Reservoir Lacustrine Littoral safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Explore Glendo Reservoir Lacustrine Littoral across LakeQuality
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Where this data comes from
2 measurements from 1 monitoring station, 2012. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- State of Wyoming Department of Environmental Quality Watershed Program
WYDEQ_WATERSHED2 samples · 2012
Analytical methods
- Secchi
- Total Phosphorus After Block Digestion
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.