Lake Rousseau
Lake Rousseau in Citrus County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2.3 ft visibility. Phosphorus: 31 µg/L. Surface area: 4060 acres.
- Clarity
- 2.3 ft
- Area
- 4,060 acres
- Trend
- → Stable
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Why Lake Rousseau 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 Lake Rousseau, 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 FDEP and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Rousseau is a 4,060-acre lake in Citrus County, Florida. Water clarity is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-06-25. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Lake Rousseau
These readings exist but are not enough for an A–F grade — see why.
Very murky, less than 2.3 ft of visibility. Phosphorus level: 31 µg/L. Trophic State Index: 59.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.3 ft | Not graded |
| Phosphorus | 31 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Rousseau
Compare lakeside cabins, hotels, and vacation rentals near Lake Rousseau in Citrus County, Florida — 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 Rousseau
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 4,060 acres |
No bathymetric survey has been published for Lake Rousseau, so its depth is not documented here.
Fishing Lake Rousseau
Water Quality Trend: → Stable
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.045 m/yr | 4 |
| Phosphorus | ↑ Improving | -3.15 µg/L/yr | 4 |
Reservoir Info (USACE NID)
Lake Rousseau is a man-made reservoir impounded by the Inglis Main Dam & Spillway (completed 1968), built primarily for flood risk reduction on the Withlacoochee River; concrete-type dam, 43 ft tall and 4,400 ft long.
- Surface area
- 4,060 ac
- Normal storage
- 54,000 ac-ft
- Max storage
- 61,400 ac-ft
- Drainage area
- 2,020 sq mi
- Hazard class
- High
- Owner
- STATE OF FLORIDA
All listed purposes: Flood Risk Reduction;Navigation;Recreation.
Source: USACE National Inventory of Dams, NID ID FL00142 · Operator website
EPA Impairment Status
Lake Rousseau is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL1329B · Official waterbody report
Graded lakes near Lake Rousseau
Lake Rousseau has no grade, but these lakes within a short drive do.
Nearby Lakes in Citrus County
Frequently asked questions about Lake Rousseau
Where is Lake Rousseau?
- Lake Rousseau is a lake in Citrus County, Florida. 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 Lake Rousseau?
- Lake Rousseau in Citrus County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2.3 ft visibility. Phosphorus: 31 µg/L. Surface area: 4060 acres.
Is Lake Rousseau safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Rousseau is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Lake Rousseau across LakeQuality
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Where this data comes from
2 measurements from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples2 samples · 2025
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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database