Louisburg State Fishing Lake
Miami County, Kansas6 acresView mapDirections
Clarity, phosphorus, and algae sit in the clean band for this region.
- Eutrophic
- Impaired · Nutrients (phosphorus, nitrogen)
- #1 of 3 in the county
- Limited data
Louisburg State Fishing Lake in Miami County, Kansas has a water quality grade of B (Good). Water clarity: 3 ft visibility. Phosphorus: 45 µg/L. Chlorophyll-a (algae): 10 µg/L. Surface area: 5.84 acres.
- Clarity
- 3 ft
- Area
- 6 acres
- Type
- Eutrophic
- Phosphorus
- 45 µg/L
- Chlorophyll-a
- 10 µg/L
- Trend
- ↑ Improving
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Watch Louisburg State Fishing Lake’s letter
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Louisburg State Fishing Lake is a 6-acre productive, nutrient-rich eutrophic lake in Miami County, Kansas. Water quality is graded B based on 1 sampling years through 2018. Overall water quality is improving over recent sampling years. Compared to the 2 other monitored lakes in Miami County, Louisburg State Fishing Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, KDHE, last sampled 2018-07-10. Grade methodology: LakeQuality methodology.
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.
The B is nutrients and algae, not a swimming clearance. Louisburg State Fishing Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Water Quality Grade: B (Good)
Very murky, less than 3 ft of visibility. Phosphorus 45 µg/L. Chlorophyll-a 10 µg/L. TSI 58. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 ft | Not graded |
| Phosphorus | 45 µg/L | Not graded |
| Chlorophyll-a (Algae) | 10 µg/L | Good |
| Trophic State Index (TSI) | 58 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 6 acres |
No bathymetric survey has been published for Louisburg State Fishing Lake, so its depth is not documented here.
Fishing Louisburg State Fishing Lake
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.03 m/yr | 2 |
| Phosphorus | ↑ Improving | -3.5 µg/L/yr | 2 |
| Chlorophyll-a | → Stable | +0.1 µg/L/yr | 2 |
Reservoir Info (USACE NID)
Louisburg State Fishing Lake is a man-made reservoir impounded by the Middle Creek Mpd No 1 (completed 1984), built primarily for water supply on the Middle Creek; earth-type dam, 53 ft tall and 2,070 ft long.
- Surface area
- 5.84 ac
- Normal storage
- 3,571 ac-ft
- Max storage
- 8,676 ac-ft
- Drainage area
- 7.41 sq mi
- Hazard class
- High
- Owner
- KANSAS DEPT OF WILDLIFE PARKS & TOURISM
All listed purposes: Water Supply;Recreation;Debris Control.
Source: USACE National Inventory of Dams, NID ID KS05384 · Operator website · Matched by proximity (0.25 km)
EPA Impairment Status
Louisburg State Fishing Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit KS-LM043801 · Official waterbody report · Matched by proximity (1.06 km)
County Ranking
Ranked #1 of 3 lakes in Miami County
Nearby Lakes in Miami County
Frequently asked questions about Louisburg State Fishing Lake
Where is Louisburg State Fishing Lake?
- Louisburg State Fishing Lake is a lake in Miami County, Kansas. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Louisburg State Fishing Lake?
- Louisburg State Fishing Lake in Miami County, Kansas has a water quality grade of B (Good). Water clarity: 3 ft visibility. Phosphorus: 45 µg/L. Chlorophyll-a (algae): 10 µg/L. Surface area: 5.84 acres.
Is Louisburg State Fishing Lake safe to swim in?
- The B is nutrients and algae, not a swimming clearance. Louisburg State Fishing Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Explore Louisburg State Fishing Lake across LakeQuality
11.5 mi away · cable-pulled, no boat wake
Species activity outlook by water temperature and season
Where to stay at Kansas's top lakes, each with its grade
High nutrients, frequent algae, reduced clarity
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Where this data comes from
8 measurements from 1 monitoring station, 2012–2018. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Kansas Department Of Health And Environment
21KAN001_WQX8 samples · 2012–2018
Analytical methods
- Depth, Secchi disk depth
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
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