Sites Lake
Richland County, OhioView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- Limited data
Sites Lake in Richland County, Ohio is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.2 ft visibility.
- Clarity
- 5.2 ft
- Typical in September
- 76°F
- Trend
- ↑ Improving
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 Sep 11–13, 4 adults. Change dates on the map below.
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Watch Sites Lake’s letter
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Why Sites Lake has no grade
Sites Lake has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Sites Lake is Not Rated — not an F. Its 5.2-foot median from 12 readings collected 2021 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. Everything below that has been measured is still reported on this page.
Sampling is run by Ohio EPA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
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. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Sites Lake
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 5.2 ft. TSI 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.2 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Water Temperature
Sites Lake typically sits around 76°F at the surface in September. 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.
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 →
Fishing Sites Lake
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +7.62 m/yr | 2 |
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.
Graded lakes near Sites Lake
Sites Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Richland County
Frequently asked questions about Sites Lake
Where is Sites Lake?
- Sites Lake is a lake in Richland County, Ohio. LakeQuality has not rated this lake (UNRATED) — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity.
What is the water quality grade for Sites Lake?
- Sites Lake in Richland County, Ohio is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.2 ft visibility.
Is Sites Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Sites Lake?
- Sites Lake typically sits around 76°F at the surface in September, 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
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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)
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)