Lake Verret South of Napoleonville
Lake Verret South of Napoleonville in Assumption Parish County, Louisiana has a water quality grade of F (Algae-prone). Phosphorus: 270 µg/L. Chlorophyll-a (algae): 41.5 µg/L.
- Type
- Hypereutrophic
Grade F measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Lake Verret South of Napoleonville →
Lake Verret South of Napoleonville is a highly nutrient-loaded hypereutrophic lake in Assumption Parish County, Louisiana. Water quality is graded F based on 1 sampling years through 2021. Public access is available with 1 public boat landing. Compared to the 20 other monitored lakes in Assumption Parish County, Lake Verret South of Napoleonville ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-07-29. Grade methodology: LakeGrade methodology.
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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.
Algae and nutrients are often high — check current advisories before swimming. Skip the water if you see scum or a paint-like bloom
Water Quality Grade: F (Algae-prone)
No clarity data. Phosphorus level: 270 µg/L. Chlorophyll-a: 41.5 µg/L. Trophic State Index: 76.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 270 µg/L | Not graded |
| Chlorophyll-a (Algae) | 41.5 µg/L | Poor |
| Trophic State Index (TSI) | 76 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Lake Verret South of Napoleonville
Compare lakeside cabins, hotels, and vacation rentals near Lake Verret South of Napoleonville in Assumption Parish County, Louisiana — 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 grade measures nutrients and algae, not lodging — cabins and rentals around Lake Verret South of Napoleonville are listed below.
Top-rated places to stay near Lake Verret South of Napoleonville
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Recreation & Access
- Little Four Mile BayouSemi-private
Named access points from the USGS National Boat Ramps inventory, snapped within 5 km. More lakes with boat ramps
Fishing Lake Verret South of Napoleonville
County Ranking
Ranked #2 of 21 lakes in Assumption Parish County
Nearby Lakes in Assumption Parish County
Frequently asked questions about Lake Verret South of Napoleonville
Where is Lake Verret South of Napoleonville?
- Lake Verret South of Napoleonville is a lake in Assumption Parish County, Louisiana. LakeQuality grades it F for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Verret South of Napoleonville?
- Lake Verret South of Napoleonville in Assumption Parish County, Louisiana has a water quality grade of F (Algae-prone). Phosphorus: 270 µg/L. Chlorophyll-a (algae): 41.5 µg/L.
Is Lake Verret South of Napoleonville safe to swim in?
- Algae and nutrients are often high — check current advisories before swimming. Skip the water if you see scum or a paint-like bloom. Lake Verret South of Napoleonville has a water quality grade of F (Algae-prone). Algae concentration (chlorophyll-a) is 41.5 µg/L. Always check local health department advisories before swimming.
Are there boat ramps on Lake Verret South of Napoleonville?
- Lake Verret South of Napoleonville has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Little Four Mile Bayou.
Explore Lake Verret South of Napoleonville across LakeGrade
More Louisiana Lake Rankings
Other Grade F Lakes in Louisiana
St. Martin Parish County · Algae-prone
St. Martin Parish County · Algae-prone
St. Martin Parish County · Algae-prone
St. Martin Parish County · Algae-prone
St. Martin Parish County · Algae-prone
St. Mary Parish County · Algae-prone
Hypereutrophic Lakes in Louisiana
Where this data comes from
14 measurements from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- LDEQ/Water Planning and Assessment (Louisiana)
LADEQWPD_WQX14 samples · 2021
Analytical methods
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
- Multiple Analytical Methods: Analysis for Total Nutrient using Louisiana Department of Environmental Quality specific me
- 2130 B ~ Nephelometric Method
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
Named boat-access points from the USGS National Boat Ramps inventory