Marengo Bend Southeast of Ferriday Lake
Marengo Bend Southeast of Ferriday Lake in Concordia Parish County, Louisiana has a water quality grade of D (Nutrient-rich). Phosphorus: 102 µg/L.
- Type
- Hypereutrophic
- Public access
- Yes
Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Marengo Bend Southeast of Ferriday Lake →
Marengo Bend Southeast of Ferriday Lake is a highly nutrient-loaded hypereutrophic lake in Concordia Parish County, Louisiana. Water quality is graded D based on 1 sampling years through 2021. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 2 other monitored lakes in Concordia Parish County, Marengo Bend Southeast of Ferriday Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-09-21. 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.
Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum
Water Quality Grade: D (Nutrient-rich)
No clarity data. Phosphorus level: 102 µg/L. Trophic State Index: 71.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 102 µg/L | Poor |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 71 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Marengo Bend Southeast of Ferriday Lake
Compare lakeside cabins, hotels, and vacation rentals near Marengo Bend Southeast of Ferriday Lake in Concordia 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 Marengo Bend Southeast of Ferriday Lake are listed below.
Top-rated places to stay near Marengo Bend Southeast of Ferriday Lake
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Recreation & Access
- Old River Vidalia LandingPublic
Named access points from the USGS National Boat Ramps inventory, snapped within 5 km. More lakes with boat ramps
Fishing Marengo Bend Southeast of Ferriday Lake
EPA Impairment Status
Marengo Bend Southeast of Ferriday Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit LA070103_00 · Official waterbody report · Matched by proximity (0 km)
County Ranking
Ranked #2 of 3 lakes in Concordia Parish County
Nearby Lakes in Concordia Parish County
Frequently asked questions about Marengo Bend Southeast of Ferriday Lake
Where is Marengo Bend Southeast of Ferriday Lake?
- Marengo Bend Southeast of Ferriday Lake is a lake in Concordia Parish County, Louisiana. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Marengo Bend Southeast of Ferriday Lake?
- Marengo Bend Southeast of Ferriday Lake in Concordia Parish County, Louisiana has a water quality grade of D (Nutrient-rich). Phosphorus: 102 µg/L.
Is Marengo Bend Southeast of Ferriday Lake safe to swim in?
- Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum. Marengo Bend Southeast of Ferriday Lake has a water quality grade of D (Nutrient-rich). Always check local health department advisories before swimming.
Are there boat ramps on Marengo Bend Southeast of Ferriday Lake?
- Marengo Bend Southeast of Ferriday Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Old River Vidalia Landing. Public access is listed as yes.
Explore Marengo Bend Southeast of Ferriday Lake across LakeGrade
More Louisiana Lake Rankings
Other Grade D Lakes in Louisiana
Catahoula Parish County · Nutrient-rich
Catahoula Parish County · Nutrient-rich
Franklin Parish County · Nutrient-rich
Tensas Parish County · Nutrient-rich
Tensas Parish County · Nutrient-rich
LaSalle Parish County · Nutrient-rich
Hypereutrophic Lakes in Louisiana
Where this data comes from
27 measurements from 1 monitoring station, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- LDEQ/Water Planning and Assessment (Louisiana)
LADEQWPD_WQX27 samples · 2020–2021
Analytical methods
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
- Turbidity by Nephelometry
- 2120 B ~ Color in Water by Visual Comparison
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
Named boat-access points from the USGS National Boat Ramps inventory