Cedar Creek Reservoir
Bourbon County, Kansas222 acresView mapDirections
KDHE publishes the water-quality measurements for Cedar Creek Reservoir. Here is what has been measured.
- Mesotrophic
- Limited data
Cedar Creek Reservoir in Bourbon County, Kansas has water-quality measurements published by KDHE, shown here as reported. Water clarity: 8.2 ft visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 6.5 µg/L. Surface area: 222.12 acres.
Cedar Creek Reservoir is a 222-acre mesotrophic lake in Bourbon County, Kansas. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, KDHE, last sampled 2017-06-06. Methodology: how these readings are compared.
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. Check local advisories before you swim.
Whether Cedar Creek Reservoir 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 Cedar Creek Reservoir
These are the measurements KDHE publishes for Cedar Creek Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Moderate clarity, visible to about 8.2 ft. Phosphorus 20 µg/L. Chlorophyll-a 6.5 µg/L. TSI 48.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 8.2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 20µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 6.5µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 48 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Cedar Creek Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
222 acres
No bathymetric survey has been published for Cedar Creek Reservoir, so its depth is not documented here.
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Fishing Cedar Creek Reservoir
Water quality readings over time
2 seasons of samples on record (2015–2017). Calling a direction takes at least 4 years of the same measurement.
Chlorophyll-a
Worsening+0.95 µg/L/yr2 years
Reservoir Info (USACE NID)
Cedar Creek Reservoir is a man-made reservoir impounded by the N-1 (completed 2002), built primarily for flood risk reduction on the Cedar Creek; earth-type dam, 64 ft tall and 1,600 ft long.
- Surface area
- 222.12 ac
- Normal storage
- 4,055.5 ac-ft
- Max storage
- 10,705.1 ac-ft
- Drainage area
- 12.63 sq mi
- Hazard class
- Low
- Owner
- MARMATON WJD NO 102
All listed purposes: Flood Risk Reduction;Recreation;Water Supply.
Source: USACE National Inventory of Dams, NID ID KS09053 · Operator website
Nearby Lakes in Bourbon County
Frequently asked questions about Cedar Creek Reservoir
Where is Cedar Creek Reservoir?
- Cedar Creek Reservoir is a lake in Bourbon County, Kansas. Its water-quality measurements are published by KDHE and shown on this page as reported.
What is the water quality of Cedar Creek Reservoir?
- Cedar Creek Reservoir in Bourbon County, Kansas has water-quality measurements published by KDHE, shown here as reported. Water clarity: 8.2 ft visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 6.5 µg/L. Surface area: 222.12 acres.
Is Cedar Creek Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Cedar Creek Reservoir across LakeQuality
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Where this data comes from
7 measurements from 1 monitoring station, 2015–2017. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Kansas Department Of Health And Environment
21KAN001_WQX7 samples · 2015–2017
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.