Ogden City Lake
Riley County, KansasView 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)
- Public access
- Limited data
Ogden City Lake in Riley County, Kansas is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 0.9 ft visibility. Chlorophyll-a (algae): 168.5 µg/L.
- Clarity
- 0.9 ft
- Chlorophyll-a
- 168.5 µg/L
- Public access
- Yes
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Watch Ogden City Lake’s letter
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Why Ogden City 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 Ogden City Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity and algae (chlorophyll-a), but not phosphorus.
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.
Ogden City Lake is a lake in Riley County, Kansas. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, KDHE, last sampled 2018-06-12. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Ogden City Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Water quality measurements for Ogden City Lake
These readings exist but are not enough for an A–F grade — see why.
Very murky, less than 0.9 ft of visibility. Chlorophyll-a 168.5 µg/L. TSI 80.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.9 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 168.5 µg/L | Not graded |
| Trophic State Index (TSI) | 80 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Fishing Ogden City Lake
EPA Impairment Status
Ogden City Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit KS-LM011701 · Official waterbody report
Graded lakes near Ogden City Lake
Ogden City Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Riley County
Frequently asked questions about Ogden City Lake
Where is Ogden City Lake?
- Ogden City Lake is a lake in Riley 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 Ogden City Lake?
- Ogden City Lake in Riley County, Kansas is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 0.9 ft visibility. Chlorophyll-a (algae): 168.5 µg/L.
Is Ogden City Lake safe to swim in?
- The letter is not a swimming clearance. Ogden City Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Explore Ogden City Lake across LakeQuality
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Where this data comes from
2 measurements from 1 monitoring station, 2018. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Kansas Department Of Health And Environment
21KAN001_WQX2 samples · 2018
Analytical methods
- Depth, Secchi disk depth
- 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