Nantachie Creek Southeast of Montgomery Lake
Grant Parish County, Louisiana1,580 acresView mapDirections
This is the name LDEQ records for this water. It can describe one sampling location rather than the water as a whole.
LDEQ publishes the water-quality measurements for Nantachie Creek Southeast of Montgomery Lake. Here is what has been measured.
- Eutrophic
- Impaired · Oxygen depletion (low DO)
- Public access
- Limited data
Nantachie Creek Southeast of Montgomery Lake in Grant Parish County, Louisiana has water-quality measurements published by LDEQ, shown here as reported. Phosphorus: 64 µg/L. Surface area: 1580 acres.
Nantachie Creek Southeast of Montgomery Lake is a 1,580-acre productive, nutrient-rich eutrophic lake in Grant Parish County, Louisiana. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 1 other monitored lakes in Grant Parish County, Nantachie Creek Southeast of Montgomery Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2022-09-07. Methodology: how these readings are compared.
What Nantachie Creek Southeast of Montgomery Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Big water1,580 acres
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Nantachie Creek Southeast of Montgomery Lake is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO). Check local advisories before you swim.
Whether Nantachie Creek Southeast of Montgomery Lake is safe to swim in today is a call for the Louisiana Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
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Water quality measurements for Nantachie Creek Southeast of Montgomery Lake
These are the measurements LDEQ publishes for Nantachie Creek Southeast of Montgomery Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 64 µg/L. TSI 64.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 64µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 64 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Nantachie Creek Southeast of Montgomery Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
1,580 acres
Public access
Yes
Listed by LDEQ
No bathymetric survey has been published for Nantachie Creek Southeast of Montgomery Lake, so its depth is not documented here.
Recreation & Access
- Dam SitePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Nantachie Creek Southeast of Montgomery Lake
Compare lakeside cabins, hotels, and vacation rentals near Nantachie Creek Southeast of Montgomery Lake in Grant 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 readings cover nutrients and algae, not lodging. Cabins and rentals around Nantachie Creek Southeast of Montgomery Lake are listed below.
Top-rated places to stay near Nantachie Creek Southeast of Montgomery Lake
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Fishing Nantachie Creek Southeast of Montgomery Lake
Reservoir Info (USACE NID)
Nantachie Creek Southeast of Montgomery Lake is a man-made reservoir impounded by the Nantachie Lake Dam (completed 1964), built primarily for recreation on the Nantachie Creek; earth-type dam, 41 ft tall and 1,150 ft long.
- Surface area
- 1,580 ac
- Normal storage
- 11,200 ac-ft
- Max storage
- 35,500 ac-ft
- Drainage area
- 84 sq mi
- Hazard class
- Low
- Owner
- State of Louisiana
Source: USACE National Inventory of Dams, NID ID LA00025 · Operator website · Matched by proximity (0.2 km)
EPA Impairment Status
Nantachie Creek Southeast of Montgomery Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life.
Source: EPA ATTAINS assessment unit LA100902_00 · Official waterbody report
Nearby Lakes in Grant Parish County
Frequently asked questions about Nantachie Creek Southeast of Montgomery Lake
Where is Nantachie Creek Southeast of Montgomery Lake?
- Nantachie Creek Southeast of Montgomery Lake is in Grant Parish County, Louisiana. This is the name LDEQ records for this water. It can describe one sampling location rather than the water as a whole. Its water-quality measurements are published by LDEQ and shown on this page as reported.
What is the water quality of Nantachie Creek Southeast of Montgomery Lake?
- Nantachie Creek Southeast of Montgomery Lake in Grant Parish County, Louisiana has water-quality measurements published by LDEQ, shown here as reported. Phosphorus: 64 µg/L. Surface area: 1580 acres.
Is Nantachie Creek Southeast of Montgomery Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Nantachie Creek Southeast of Montgomery Lake is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO). Check local advisories before you swim.
Are there boat ramps on Nantachie Creek Southeast of Montgomery Lake?
- Nantachie Creek Southeast of Montgomery Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Dam Site. Public access is listed as yes.
Can I fish at Nantachie Creek Southeast of Montgomery Lake?
- Nantachie Creek Southeast of Montgomery Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Louisiana's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
22 measurements from 1 monitoring station, 2021–2022. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- LDEQ/Water Planning and Assessment (Louisiana)
LADEQWPD_WQX22 samples · 2021–2022
Analytical methods
- Total Phosphorus After Block Digestion
- 2130 B ~ Nephelometric Method
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from 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