Lake Moultrie
Lake Moultrie in Berkeley County, South Carolina has a water quality grade of B (Good). Water clarity: 4.9 ft visibility. Chlorophyll-a (algae): 8.7 µg/L.
- Clarity
- 4.9 ft
- Type
- Eutrophic
- Trend
- ↑ Improving
Lake Moultrie is a productive, nutrient-rich eutrophic lake in Berkeley County, South Carolina. Water quality is graded B based on 1 sampling years through 2019. Overall water quality is improving over recent sampling years. Compared to the 28 other monitored lakes in Berkeley County, Lake Moultrie ranks #17 for water quality.
Source: EPA Water Quality Portal sampling records, SCDES, last sampled 2019-12-09. Grade methodology: LakeGrade methodology.
Watch Lake Moultrie water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Good for swimming, clear water with low algae levels
Water Quality Grade: B (Good)
Murky, only visible to about 4.9 ft. Chlorophyll-a: 8.7 µg/L. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.9 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 8.7 µg/L | Good |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Moultrie
Compare lakeside cabins, hotels, and vacation rentals near Lake Moultrie in Berkeley County, South Carolina — 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.
Top-rated places to stay near Lake Moultrie
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Fishing Lake Moultrie
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Phosphorus | ↑ Improving | -2.5 µg/L/yr | 2 |
| Chlorophyll-a | ↑ Improving | -2.3 µg/L/yr | 2 |
County Ranking
Ranked #17 of 29 lakes in Berkeley County
Nearby Lakes in Berkeley County
Frequently asked questions about Lake Moultrie
What is the water quality grade for Lake Moultrie?
- Lake Moultrie in Berkeley County, South Carolina has a water quality grade of B (Good). Water clarity: 4.9 ft visibility. Chlorophyll-a (algae): 8.7 µg/L.
Is Lake Moultrie safe to swim in?
- Good for swimming, clear water with low algae levels. Lake Moultrie has a water quality grade of B (Good). Algae concentration (chlorophyll-a) is 8.7 µg/L. Always check local health department advisories before swimming.
Explore Lake Moultrie across LakeGrade
More South Carolina Lake Rankings
Top 25 by overall water quality score
Top 25 by Secchi water clarity
Grade A/B + low algae filter
Panfish-rich, public access
Full state directory
Other Grade B Lakes in South Carolina
Eutrophic Lakes in South Carolina
Where this data comes from
65 measurements from 3 monitoring stations, 2018–2019. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples65 samples · 2018–2019
Monitoring station identifiers (3)
Grade thresholds come from the U.S. EPA National Lakes Assessment 2022 Technical Support Document (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2019-12-09
Monitoring stations: 3