Clark Co State Fishing Lake
Clark County, Kansas337 acresView mapDirections
Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.
- Impaired · Nutrients (phosphorus, nitrogen)
- Limited data
Clark Co State Fishing Lake in Clark County, Kansas is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2.7 ft visibility. Phosphorus: 62 µg/L. Chlorophyll-a (algae): 32 µg/L. Surface area: 336.77 acres.
- Clarity
- 2.7 ft
- Area
- 337 acres
- Phosphorus
- 62 µg/L
- Chlorophyll-a
- 32 µg/L
- Trend
- ↓ Declining
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Watch Clark Co State Fishing Lake’s letter
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Why Clark Co State Fishing Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Clark Co State Fishing Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by KDHE and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Clark Co State Fishing Lake is a 337-acre lake in Clark County, Kansas. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, KDHE, last sampled 2014-06-17. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Clark Co State Fishing Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Water quality measurements for Clark Co State Fishing Lake
These readings exist but are not enough for an A–F grade — see why.
Very murky, less than 2.7 ft of visibility. Phosphorus 62 µg/L. Chlorophyll-a 32 µg/L. TSI 64.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.7 ft | Not graded |
| Phosphorus | 62 µg/L | Not graded |
| Chlorophyll-a (Algae) | 32 µg/L | Not graded |
| Trophic State Index (TSI) | 64 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 337 acres |
No bathymetric survey has been published for Clark Co State Fishing Lake, so its depth is not documented here.
Fishing Clark Co State Fishing Lake
Water Quality Trend: ↓ Declining
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.04 m/yr | 2 |
| Phosphorus | ↓ Declining | +4.5 µg/L/yr | 2 |
| Chlorophyll-a | ↓ Declining | +8.25 µg/L/yr | 2 |
Reservoir Info (USACE NID)
Clark Co State Fishing Lake is a man-made reservoir impounded by the Clark State Fishing Lake (completed 1934) on the Bluff Creek; earth-type dam, 75 ft tall and 1,500 ft long.
- Surface area
- 336.77 ac
- Normal storage
- 7,662.6 ac-ft
- Max storage
- 11,879 ac-ft
- Drainage area
- 143.4 sq mi
- Hazard class
- Low
- Owner
- KANSAS DEPT OF WILDLIFE PARKS & TOURISM
Source: USACE National Inventory of Dams, NID ID KS00867 · Operator website · Matched by proximity (0.17 km)
EPA Impairment Status
Clark Co State Fishing 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 KS-LM010101 · Official waterbody report · Matched by proximity (1.26 km)
Nearby Lakes in Clark County
Frequently asked questions about Clark Co State Fishing Lake
Where is Clark Co State Fishing Lake?
- Clark Co State Fishing Lake is a lake in Clark County, Kansas. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Clark Co State Fishing Lake?
- Clark Co State Fishing Lake in Clark County, Kansas is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2.7 ft visibility. Phosphorus: 62 µg/L. Chlorophyll-a (algae): 32 µg/L. Surface area: 336.77 acres.
Is Clark Co State Fishing Lake safe to swim in?
- The letter is not a swimming clearance. Clark Co State Fishing Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
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Where this data comes from
5 measurements from 1 monitoring station, 2014. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Kansas Department Of Health And Environment
21KAN001_WQX5 samples · 2014
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