Atchison County Park Lake
Atchison County, KansasView mapDirections
KDHE publishes the water-quality measurements for Atchison County Park Lake. Here is what has been measured.
- Impaired · Nutrients (phosphorus, nitrogen)
- Limited data
Atchison County Park Lake in Atchison County, Kansas has water-quality measurements published by KDHE, shown here as reported. Water clarity: 1.2 ft visibility. Phosphorus: 280 µg/L. Chlorophyll-a (algae): 28 µg/L.
Atchison County Park Lake is a lake in Atchison County, Kansas. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, KDHE, last sampled 2016-06-21. Methodology: how these readings are compared.
Swimming conditions
No readingRecreation use not supported
Nutrient and algae readings are not a swimming clearance. Atchison County Park Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), sediment / turbidity. Check local advisories before you swim.
Whether Atchison County Park Lake is safe to swim in today is a call for the Kansas Department of Health and Environment and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Atchison County Park Lake
These are the measurements KDHE publishes for Atchison County Park Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 1.2 ft of visibility. Phosphorus 280 µg/L. Chlorophyll-a 28 µg/L. TSI 74.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 280µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 28µg/L | Measured, not scored 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. | 74 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Atchison County Park Lake
Answers come straight from the public measurements and survey records on this page.
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Fishing Atchison County Park Lake
Water quality readings over time
2 seasons of samples on record (2012–2016). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Improving2 years
Phosphorus
Stable+4.75 µg/L/yr2 years
Chlorophyll-a
Improving-0.95 µg/L/yr2 years
Reservoir Info (USACE NID)
Atchison County Park Lake is a man-made reservoir impounded by the (completed 1935), built primarily for recreation on the Clear Creek; earth-type dam, 40 ft tall and 1,330 ft long.
- Normal storage
- 816 ac-ft
- Max storage
- 1,134 ac-ft
- Hazard class
- Low
- Owner
- ATCHISON COUNTY
Source: USACE National Inventory of Dams, NID ID KS02537 · Operator website · Matched by proximity (0.31 km)
EPA Impairment Status
Atchison County Park 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: Drinking water, Aquatic life, Recreation.
Source: EPA ATTAINS assessment unit KS-LM060601 · Official waterbody report
Nearby Lakes in Atchison County
Frequently asked questions about Atchison County Park Lake
Where is Atchison County Park Lake?
- Atchison County Park Lake is a lake in Atchison County, Kansas. Its water-quality measurements are published by KDHE and shown on this page as reported.
What is the water quality of Atchison County Park Lake?
- Atchison County Park Lake in Atchison County, Kansas has water-quality measurements published by KDHE, shown here as reported. Water clarity: 1.2 ft visibility. Phosphorus: 280 µg/L. Chlorophyll-a (algae): 28 µg/L.
Is Atchison County Park Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Atchison County Park Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), sediment / turbidity. Check local advisories before you swim.
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Where this data comes from
5 measurements from 1 monitoring station, 2016. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Kansas Department Of Health And Environment
21KAN001_WQX5 samples · 2016
Analytical methods
- Depth, Secchi disk depth
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
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