Lake Maurepas South of Killian
Lake Maurepas South of Killian in Livingston Parish County, Louisiana has a water quality grade of C (Fair). Phosphorus: 160 µg/L. Chlorophyll-a (algae): 17.2 µg/L.
- Type
- Eutrophic
Lake Maurepas South of Killian 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 South of Killian ranks #2 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.
Swim with caution, moderate algae may be present
Water Quality Grade: C (Fair)
No clarity data. Phosphorus level: 160 µg/L. Chlorophyll-a: 17.2 µg/L. Trophic State Index: 68.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 160 µg/L | Not graded |
| Chlorophyll-a (Algae) | 17.2 µg/L | Fair |
| Trophic State Index (TSI) | 68 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Maurepas South of Killian
Compare lakeside cabins, hotels, and vacation rentals near Lake Maurepas South of Killian 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 South of Killian
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Fishing Lake Maurepas South of Killian
County Ranking
Ranked #2 of 11 lakes in Livingston Parish County
Nearby Lakes in Livingston Parish County
Frequently asked questions about Lake Maurepas South of Killian
Where is Lake Maurepas South of Killian?
- Lake Maurepas South of Killian 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 South of Killian?
- Lake Maurepas South of Killian in Livingston Parish County, Louisiana has a water quality grade of C (Fair). Phosphorus: 160 µg/L. Chlorophyll-a (algae): 17.2 µg/L.
Is Lake Maurepas South of Killian safe to swim in?
- Swim with caution, moderate algae may be present. Lake Maurepas South of Killian has a water quality grade of C (Fair). Algae concentration (chlorophyll-a) is 17.2 µg/L. Always check local health department advisories before swimming.
Explore Lake Maurepas South of Killian 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.