Twin Lake West Lower
Lake County, ColoradoView mapDirections
Colorado WQCD publishes the water-quality measurements for Twin Lake West Lower. Here is what has been measured.
- Eutrophic
- Impaired · Metals (other than mercury)
- Limited data
Ask about Twin Lake West Lower
Answers come straight from the public measurements and survey records on this page.
Twin Lake West Lower in Lake County, Colorado has water-quality measurements published by Colorado WQCD, shown here as reported. Phosphorus: 46 µg/L.
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Stays near Twin Lake West Lower
Compare lakeside cabins, hotels, and vacation rentals near Twin Lake West Lower in Lake County, Colorado — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Twin Lake West Lower are listed below.
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Twin Lake West Lower is a productive, nutrient-rich eutrophic lake in Lake County, Colorado. Compared to the 3 other monitored lakes in Lake County, Twin Lake West Lower ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, CDPHE, last sampled 2024-09-10. Grade methodology: LakeQuality methodology.
What Twin Lake West Lower is good for
From access and monitoring records, not editorial picks.
- Camping3 public campgrounds nearby
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Twin Lake West Lower is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury). Check local advisories before you swim.
Whether Twin Lake West Lower is safe to swim in today is a call for the Water Quality Control Division of the Colorado Department of Public Health and Environment and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Twin Lake West Lower
These are the measurements Colorado WQCD publishes for Twin Lake West Lower, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 46 µg/L. TSI 59.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 46 µg/L | Poor |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Recreation & Access
Public campgrounds near Twin Lake West Lower
- Whitestar1.3 km
- Lakeview2.1 km
- Parry Peak4.3 km
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
Fishing Twin Lake West Lower
EPA Impairment Status
Twin Lake West Lower is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit COARUA30_B · Official waterbody report · Matched by proximity (0.23 km)
Nearby Lakes in Lake County
Frequently asked questions about Twin Lake West Lower
Where is Twin Lake West Lower?
- Twin Lake West Lower is a lake in Lake County, Colorado. Its water-quality measurements are published by Colorado WQCD and shown on this page as reported.
What is the water quality of Twin Lake West Lower?
- Twin Lake West Lower in Lake County, Colorado has water-quality measurements published by Colorado WQCD, shown here as reported. Phosphorus: 46 µg/L.
Is Twin Lake West Lower safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Twin Lake West Lower is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury). Check local advisories before you swim.
Are there campgrounds on Twin Lake West Lower?
- Twin Lake West Lower has 3 public campgrounds from USGS The National Map within 5 km, including Whitestar, Lakeview, Parry Peak. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
Explore Twin Lake West Lower across LakeQuality
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Where this data comes from
6 measurements from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Colorado Dept. of Public Health & Environment-WQCD
21COL001_WQX6 samples · 2024
Analytical methods
- Phosphorus by Colorimetry
- Nitrogen in Water by Pyrolysis Detection
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Public campgrounds from USGS The National Map Structures, within about 3 miles