Sites Lake
Richland County, OhioView mapDirections
Ohio EPA publishes the water-quality measurements for Sites Lake. Here is what has been measured.
- Limited data
Sites Lake in Richland County, Ohio has water-quality measurements published by Ohio EPA, shown here as reported. Water clarity: 5.2 ft visibility.
Sites Lake is a lake in Richland County, Ohio. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, Ohio EPA, last sampled 2021-10-22. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Sites 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 Sites Lake
These are the measurements Ohio EPA publishes for Sites Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 5.2 ft. TSI 53.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5.2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading 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. | 53 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Sites Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Sites Lake typically sits around 66°F at the surface in October. Summer average is about 79°F. Usually warmest in Jul (about 81°F) and coldest in Oct (about 66°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (66°F) to its warmest (81°F).
Typical surface water temperature by month, from 33 field readings (2016–2021) via the EPA Water Quality Portal. See the full Sites Lake water temperature breakdown →
Stays via Stay22
Stays near Sites Lake
Compare lakeside cabins, hotels, and vacation rentals near Sites Lake in Richland 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.
Top-rated places to stay near Sites Lake
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Ohio’s top lakes →
Follow Sites Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Sites Lake
Water quality readings over time
2 seasons of samples on record (2020–2021). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Improving2 years
Regulated Pollution Sources Nearby
8 EPA-permitted facilities operate within about 5 miles of Sites Lake under Clean Water Act (NPDES) discharge permits. 5 facilities have a reported Clean Water Act violation in the past three years.
- Charles Mill Sites Lake Cottage Area WwtpMansfield · 0.5 mi away · NPDES OH0137880Recent violation
- Ohio Hilltop, IncMansfield · 0.9 mi away · NPDES OH0111562Recent violation
- Rdb Motels Inc Dba Heritage InnMansfield · 0.9 mi away · NPDES OH0126543Recent violation
- Hillside Estates MhpMansfield · 2.7 mi away · NPDES OH0122505Recent violation
- Eastview WwtpMansfield · 3.4 mi away · NPDES OH0039217Recent violation
- Oak Park TavernMansfield, City Of · 1.3 mi away · NPDES OH0137910
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Nearby Lakes in Richland County
Frequently asked questions about Sites Lake
Where is Sites Lake?
- Sites Lake is a lake in Richland County, Ohio. Its water-quality measurements are published by Ohio EPA and shown on this page as reported.
What is the water quality of Sites Lake?
- Sites Lake in Richland County, Ohio has water-quality measurements published by Ohio EPA, shown here as reported. Water clarity: 5.2 ft visibility.
Is Sites Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Sites Lake?
- Sites Lake typically sits around 66°F at the surface in October, from 33 EPA Water Quality Portal field readings (2016–2021). That is a typical value for the month, not a live reading.
Explore Sites Lake across LakeQuality
More lakes in Ohio
Other Lakes in Ohio
Eutrophic Lakes in Ohio
Where this data comes from
12 measurements from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Ohio Lake Management Society (Volunteer)
OLMS12 samples · 2021
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)