Cotile Lake West of Alexandria
Rapides Parish County, Louisiana775 acresView mapDirections
This is the name LDEQ records for this water. It can describe one sampling location rather than the water as a whole.
LDEQ publishes the water-quality measurements for Cotile Lake West of Alexandria. Here is what has been measured.
- Eutrophic
- Public access
- Limited data
Cotile Lake West of Alexandria in Rapides Parish County, Louisiana has water-quality measurements published by LDEQ, shown here as reported. Phosphorus: 50 µg/L. Surface area: 775 acres.
Cotile Lake West of Alexandria is a 775-acre productive, nutrient-rich eutrophic lake in Rapides Parish County, Louisiana. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 3 other monitored lakes in Rapides Parish County, Cotile Lake West of Alexandria ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2022-09-07. Methodology: how these readings are compared.
What Cotile Lake West of Alexandria is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
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. Check local advisories before you swim.
Whether Cotile Lake West of Alexandria is safe to swim in today is a call for the Louisiana Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Cotile Lake West of Alexandria
These are the measurements LDEQ publishes for Cotile Lake West of Alexandria, 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 50 µg/L. TSI 61.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 50µg/L | Fair GoodFairPoor |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 61 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Cotile Lake West of Alexandria
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
775 acres
Public access
Yes
Listed by LDEQ
No bathymetric survey has been published for Cotile Lake West of Alexandria, so its depth is not documented here.
Recreation & Access
- Cotile Lake (North)Public
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Fishing Cotile Lake West of Alexandria
Reservoir Info (USACE NID)
Cotile Lake West of Alexandria is a man-made reservoir impounded by the Cotile Lake Dam (completed 1965), built primarily for recreation on the Bayou Jean de Jean; earth-type dam, 47 ft tall and 6,040 ft long.
- Surface area
- 775 ac
- Normal storage
- 25,000 ac-ft
- Max storage
- 49,200 ac-ft
- Drainage area
- 40.75 sq mi
- Hazard class
- High
- Owner
- Rapides Parish Police Jury
Source: USACE National Inventory of Dams, NID ID LA00031 · Operator website · Matched by proximity (0.92 km)
Nearby Lakes in Rapides Parish County
Frequently asked questions about Cotile Lake West of Alexandria
Where is Cotile Lake West of Alexandria?
- Cotile Lake West of Alexandria is in Rapides Parish County, Louisiana. This is the name LDEQ records for this water. It can describe one sampling location rather than the water as a whole. Its water-quality measurements are published by LDEQ and shown on this page as reported.
What is the water quality of Cotile Lake West of Alexandria?
- Cotile Lake West of Alexandria in Rapides Parish County, Louisiana has water-quality measurements published by LDEQ, shown here as reported. Phosphorus: 50 µg/L. Surface area: 775 acres.
Is Cotile Lake West of Alexandria safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Cotile Lake West of Alexandria?
- Cotile Lake West of Alexandria has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Cotile Lake (North). Public access is listed as yes.
Can I fish at Cotile Lake West of Alexandria?
- Cotile Lake West of Alexandria has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Louisiana's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
21 measurements from 1 monitoring station, 2021–2022. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- LDEQ/Water Planning and Assessment (Louisiana)
LADEQWPD_WQX21 samples · 2021–2022
Analytical methods
- Total Phosphorus After Block Digestion
- 2130 B ~ Nephelometric Method
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
Named boat-access points from the USGS National Boat Ramps inventory