Lake Maurepas North-Northwest of Laplace
Lake Maurepas North-Northwest of Laplace in Livingston Parish County, Louisiana has a water quality grade of C (Fair). Phosphorus: 140 µg/L. Chlorophyll-a (algae): 12.8 µg/L.
- Type
- Eutrophic
Lake Maurepas North-Northwest of Laplace is a productive, nutrient-rich eutrophic lake in Livingston Parish County, Louisiana. Water quality is graded C based on 1 sampling years through 2021. Compared to the 10 other monitored lakes in Livingston Parish County, Lake Maurepas North-Northwest of Laplace ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-07-15. 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.
Generally safe for swimming, moderate water quality
Water Quality Grade: C (Fair)
No clarity data. Phosphorus level: 140 µg/L. Chlorophyll-a: 12.8 µg/L. Trophic State Index: 66.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 140 µg/L | Not graded |
| Chlorophyll-a (Algae) | 12.8 µg/L | Fair |
| Trophic State Index (TSI) | 66 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Maurepas North-Northwest of Laplace
Compare lakeside cabins, hotels, and vacation rentals near Lake Maurepas North-Northwest of Laplace in Livingston 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.
Top-rated places to stay near Lake Maurepas North-Northwest of Laplace
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Fishing Lake Maurepas North-Northwest of Laplace
County Ranking
Ranked #1 of 11 lakes in Livingston Parish County
Nearby Lakes in Livingston Parish County
Frequently asked questions about Lake Maurepas North-Northwest of Laplace
Where is Lake Maurepas North-Northwest of Laplace?
- Lake Maurepas North-Northwest of Laplace is a lake in Livingston Parish County, Louisiana. LakeQuality grades it C for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Maurepas North-Northwest of Laplace?
- Lake Maurepas North-Northwest of Laplace in Livingston Parish County, Louisiana has a water quality grade of C (Fair). Phosphorus: 140 µg/L. Chlorophyll-a (algae): 12.8 µg/L.
Is Lake Maurepas North-Northwest of Laplace safe to swim in?
- Generally safe for swimming, moderate water quality. Lake Maurepas North-Northwest of Laplace has a water quality grade of C (Fair). Algae concentration (chlorophyll-a) is 12.8 µg/L. Always check local health department advisories before swimming.
Explore Lake Maurepas North-Northwest of Laplace across LakeGrade
More Louisiana Lake Rankings
Other Grade C Lakes in Louisiana
St. Tammany Parish County · 3.3 ft
St. Charles Parish County · Fair
Concordia Parish County · Fair
Catahoula Parish County · Fair
Evangeline Parish County · Fair
LaSalle Parish County · Fair
Eutrophic 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.