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LakeQuality

Chattahoochee River Lake

Troup County, GeorgiaView mapDirections

Georgia EPD publishes the water-quality measurements for Chattahoochee River Lake. Here is what has been measured.

Phosphorus
30 µg/L
Measured by Georgia EPD
Type
Eutrophic
Trophic class
Trend
Declining
14 years of samples
  • Eutrophic
  • Impaired · Nutrients (phosphorus, nitrogen)
  • Public access

Ask about Chattahoochee River Lake

Answers come straight from the public measurements and survey records on this page.

Chattahoochee River Lake in Troup County, Georgia has water-quality measurements published by Georgia EPD, shown here as reported. Phosphorus: 30 µg/L.

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Chattahoochee River Lake is a productive, nutrient-rich eutrophic lake in Troup County, Georgia. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 5 public boat landings. Compared to the 3 other monitored lakes in Troup County, Chattahoochee River Lake ranks #3 for water quality.

Source: EPA Water Quality Portal sampling records, Georgia EPD, last sampled 2024-01-24. Grade methodology: LakeQuality methodology.

What Chattahoochee River Lake is good for

From access and monitoring records, not editorial picks.

  • Boat launch5 documented ramps

Swimming conditions

Readings only

Moderate algae

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. Chattahoochee River Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), pCBs. Check local advisories before you swim.

Whether Chattahoochee River Lake is safe to swim in today is a call for the Georgia Environmental Protection Division and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Chattahoochee River Lake

These are the measurements Georgia EPD publishes for Chattahoochee River Lake, 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 30 µg/L. TSI 53.

MetricValueEPA condition class
Water Clarity (Secchi Depth)No recent samples
Phosphorus30 µg/LFair
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)53Eutrophic

High nutrients, frequent algae, reduced clarity

Recreation & Access

5
Boat Landings
Yes
Public Access
  • Clark AccessPublic
  • GA 219 AccessPublic
  • Liberty Hill AccessPublic
  • Ringer Camping AreaPublic
  • Sunny Point AccessPublic

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

Fishing Chattahoochee River Lake

Based on 14 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable-0.026 m/yr14
Phosphorus Declining+1.67 µg/L/yr6
Chlorophyll-a Declining+1.61 µg/L/yr14
See year-by-year chart →

EPA Impairment Status

Chattahoochee River Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Nutrients (phosphorus, nitrogen)PCBs

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit GAR031300020803 · Official waterbody report · Matched by proximity (2.24 km)

Nearby Lakes in Troup County

Frequently asked questions about Chattahoochee River Lake

Where is Chattahoochee River Lake?

Chattahoochee River Lake is a lake in Troup County, Georgia. Its water-quality measurements are published by Georgia EPD and shown on this page as reported.

What is the water quality of Chattahoochee River Lake?

Chattahoochee River Lake in Troup County, Georgia has water-quality measurements published by Georgia EPD, shown here as reported. Phosphorus: 30 µg/L.

Is Chattahoochee River Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Chattahoochee River Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), pCBs. Check local advisories before you swim.

Are there boat ramps on Chattahoochee River Lake?

Chattahoochee River Lake has 5 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Clark Access, GA 219 Access, Liberty Hill Access, Ringer Camping Area, among others. Public access is listed as yes.

Where this data comes from

94 measurements from 1 monitoring station, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • USGS Georgia Water Science CenterUSGS-GA94 samples · 2020–2024

Analytical methods

  • Phosphorus, total, colorimetric
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

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