Alum Creek Lake
Delaware County, OhioView mapDirections
Ohio EPA publishes the water-quality measurements for Alum Creek Lake. Here is what has been measured.
- Hypereutrophic
- Public access
- Limited data
Ask about Alum Creek Lake
Answers come straight from the public measurements and survey records on this page.
Alum Creek Lake in Delaware County, Ohio has water-quality measurements published by Ohio EPA, shown here as reported. Phosphorus: 80.6 µg/L. Chlorophyll-a (algae): 53.9 µg/L.
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Stays near Alum Creek Lake
Compare lakeside cabins, hotels, and vacation rentals near Alum Creek Lake in Delaware County, Ohio — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Alum Creek Lake are listed below.
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Alum Creek Lake is a highly nutrient-loaded hypereutrophic lake in Delaware County, Ohio. Limited fish-species data available. Public access is available with 3 public boat landings. Compared to the 3 other monitored lakes in Delaware County, Alum Creek Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Ohio EPA, last sampled 2024-09-26. Grade methodology: LakeQuality methodology.
What Alum Creek Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch3 documented ramps
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 Alum Creek Lake is safe to swim in today is a call for the Ohio Environmental Protection Agency and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Alum Creek Lake
These are the measurements Ohio EPA publishes for Alum Creek Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 80.6 µg/L. Chlorophyll-a 53.9 µg/L. TSI 69.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 80.6 µg/L | Poor |
| Chlorophyll-a (Algae) | 53.9 µg/L | Poor |
| Trophic State Index (TSI) | 69 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Recreation & Access
- Alum Creek State Park - Campground/ChurchPublic
- Alum Creek State Park - CheshirePublic
- Alum Creek State Park - Howard RoadPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Alum Creek Lake
Nearby Lakes in Delaware County
Frequently asked questions about Alum Creek Lake
Where is Alum Creek Lake?
- Alum Creek Lake is a lake in Delaware County, Ohio. Its water-quality measurements are published by Ohio EPA and shown on this page as reported.
What is the water quality of Alum Creek Lake?
- Alum Creek Lake in Delaware County, Ohio has water-quality measurements published by Ohio EPA, shown here as reported. Phosphorus: 80.6 µg/L. Chlorophyll-a (algae): 53.9 µg/L.
Is Alum Creek Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Alum Creek Lake?
- Alum Creek Lake has 3 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Alum Creek State Park - Campground/Church, Alum Creek State Park - Cheshire, Alum Creek State Park - Howard Road. Public access is listed as yes.
Explore Alum Creek Lake across LakeQuality
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Where this data comes from
52 measurements from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Division of Surface water (Ohio)
21OHIO_WQX52 samples · 2024
Analytical methods
- Total Phosphorus After Block Digestion
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
- 2130 B ~ Nephelometric Method
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
Named boat-access points from the USGS National Boat Ramps inventory