Pottawatomie State Fishing Lake
Pottawatomie County, KansasView mapDirections
Clarity, phosphorus, and algae all sit in the cleanest band for this region.
- Mesotrophic
- #2 of 2 in the county
- 32 ft max depth
- Public access
- Limited data
Pottawatomie State Fishing Lake in Pottawatomie County, Kansas has a water quality grade of A (Excellent). Water clarity: 8.3 ft visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 2.2 µg/L.
- Clarity
- 8.3 ft
- Max depth
- ~32 ft est.
- Type
- Mesotrophic
- Phosphorus
- 20 µg/L
- Chlorophyll-a
- 2.2 µg/L
- Trend
- → Stable
- Public access
- Yes
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Watch Pottawatomie State Fishing Lake’s letter
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Pottawatomie State Fishing Lake is a mesotrophic lake in Pottawatomie County, Kansas with an estimated average depth of about 32 feet. Water quality is graded A based on 2 sampling years through 2018. Water clarity is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 1 other monitored lakes in Pottawatomie County, Pottawatomie State Fishing Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, KDHE, last sampled 2018-06-11. Grade methodology: LakeQuality methodology.
What Pottawatomie State Fishing Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
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 A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: A (Excellent)
Moderate clarity, visible to about 8.3 ft. Phosphorus 20 µg/L. Chlorophyll-a 2.2 µg/L. TSI 44. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8.3 ft | Not graded |
| Phosphorus | 20 µg/L | Good |
| Chlorophyll-a (Algae) | 2.2 µg/L | Good |
| Trophic State Index (TSI) | 44 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~32 ft est. |
| Average Depth | ~13 ft est. |
| Public Access | Yes |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Kansas has not published bathymetry for Pottawatomie State Fishing Lake.
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Recreation & Access
- Pottawatomie County 2Public
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Pottawatomie State Fishing Lake
Water Quality Trend: → Stable
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.06 m/yr | 2 |
| Phosphorus | → Stable | 0 µg/L/yr | 2 |
| Chlorophyll-a | ↑ Improving | -0.15 µg/L/yr | 2 |
Reservoir Info (USACE NID)
Pottawatomie State Fishing Lake is a man-made reservoir impounded by the Pottawatomie CO State Lake No 2 Dam (completed 1976) on the Big Blue River-Tr, 59 ft tall and 1,520 ft long.
- Normal storage
- 1,350 ac-ft
- Max storage
- 2,100 ac-ft
- Hazard class
- Low
- Owner
- KANSAS DEPT OF WILDLIFE PARKS & TOURISM
Source: USACE National Inventory of Dams, NID ID KS00891 · Operator website · Matched by proximity (0.13 km)
County Ranking
Ranked #2 of 2 lakes in Pottawatomie County
Nearby Lakes in Pottawatomie County
Frequently asked questions about Pottawatomie State Fishing Lake
Where is Pottawatomie State Fishing Lake?
- Pottawatomie State Fishing Lake is a lake in Pottawatomie County, Kansas. LakeQuality grades it A for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Pottawatomie State Fishing Lake?
- Pottawatomie State Fishing Lake in Pottawatomie County, Kansas has a water quality grade of A (Excellent). Water clarity: 8.3 ft visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 2.2 µg/L.
Is Pottawatomie State Fishing Lake safe to swim in?
- The A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
How deep is Pottawatomie State Fishing Lake?
- No published bathymetric survey covers Pottawatomie State Fishing Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 32 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Are there boat ramps on Pottawatomie State Fishing Lake?
- Pottawatomie State Fishing Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Pottawatomie County 2. Public access is listed as yes.
Explore Pottawatomie State Fishing Lake across LakeQuality
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Where this data comes from
10 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_WQX10 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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory