Nebo Watershed Lake
Jackson County, Kansas38 acresView mapDirections
KDHE publishes the water-quality measurements for Nebo Watershed Lake. Here is what has been measured.
- Impaired · Nutrients (phosphorus, nitrogen)
- Limited data
Nebo Watershed Lake in Jackson County, Kansas has water-quality measurements published by KDHE, shown here as reported. Water clarity: 1.5 ft visibility. Phosphorus: 120 µg/L. Chlorophyll-a (algae): 43 µg/L. Surface area: 38.12 acres.
Nebo Watershed Lake is a 38-acre lake in Jackson County, Kansas.
Source: EPA Water Quality Portal sampling records, KDHE, last sampled 2017-06-12. Methodology: how these readings are compared.
Swimming conditions
No readingRecreation use not supported
Nutrient and algae readings are not a swimming clearance. Nebo Watershed Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Nebo Watershed 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 Nebo Watershed Lake
These are the measurements KDHE publishes for Nebo Watershed 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 1.5 ft of visibility. Phosphorus 120 µg/L. Chlorophyll-a 43 µg/L. TSI 71.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 120µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 43µg/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. | 71 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Nebo Watershed Lake
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Lake Details
Surface area
38 acres
No bathymetric survey has been published for Nebo Watershed Lake, so its depth is not documented here.
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Fishing Nebo Watershed Lake
Reservoir Info (USACE NID)
Nebo Watershed Lake is a man-made reservoir impounded by the Frd No 3 (Nebo Creek) (completed 1999), built primarily for flood risk reduction on the Nebo Creek; earth-type dam, 37 ft tall.
- Surface area
- 38.12 ac
- Normal storage
- 281 ac-ft
- Max storage
- 3,181 ac-ft
- Drainage area
- 4.15 sq mi
- Hazard class
- Low
- Owner
- DELAWARE WJD NO 10
Source: USACE National Inventory of Dams, NID ID KS02331 · Operator website · Matched by proximity (0.14 km)
EPA Impairment Status
Nebo Watershed 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-LM061501 · Official waterbody report
Nearby Lakes in Jackson County
Frequently asked questions about Nebo Watershed Lake
Where is Nebo Watershed Lake?
- Nebo Watershed Lake is a lake in Jackson County, Kansas. Its water-quality measurements are published by KDHE and shown on this page as reported.
What is the water quality of Nebo Watershed Lake?
- Nebo Watershed Lake in Jackson County, Kansas has water-quality measurements published by KDHE, shown here as reported. Water clarity: 1.5 ft visibility. Phosphorus: 120 µg/L. Chlorophyll-a (algae): 43 µg/L. Surface area: 38.12 acres.
Is Nebo Watershed Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Nebo Watershed 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, 2017. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Kansas Department Of Health And Environment
21KAN001_WQX5 samples · 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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database