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LakeQuality

Round Lake Central Basin; Cambridge Township

NR
Not yet rated
10 ft clear · Mesotrophic · 65 acres
Limited DataMesotrophic

Round Lake Central Basin; Cambridge Township in Lenawee County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 10 ft visibility. Surface area: 65 acres.

Clarity
10 ft
Mean depth
~11 ft est.
Area
65 acres
Trend
Declining
Public access
Yes

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Why Round Lake Central Basin; Cambridge Township 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 Round Lake Central Basin; Cambridge Township, 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. Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).

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 EGLE and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.

Round Lake Central Basin; Cambridge Township is a 65-acre lake in Lenawee County, Michigan with an estimated average depth of about 11 feet. Overall water quality is declining over recent sampling years. The lake supports 5 documented fish species including Blackchin shiner, Sand shiner, and Spottail shiner. Public access is available with 2 public boat landings.

Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2019-09-21. Grade methodology: LakeQuality methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

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Get alerts for Round Lake Central Basin; Cambridge Township

Water quality measurements for Round Lake Central Basin; Cambridge Township

These readings exist but are not enough for an A–F grade — see why.

Good clarity, visible to about 10 ft. Trophic State Index: 44.

MetricValueGrade
Water Clarity (Secchi Depth)10 ftNot graded
PhosphorusNo recent samples
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)44Mesotrophic

Moderate nutrients, good water quality

Where to stay near Round Lake Central Basin; Cambridge Township

Compare lakeside cabins, hotels, and vacation rentals near Round Lake Central Basin; Cambridge Township in Lenawee County, Michigan — 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 Round Lake Central Basin; Cambridge Township

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Lake Details

CharacteristicValue
Average Depth~11 ft est.
Surface Area65 acres
Public AccessYes

Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Michigan has not published bathymetry for Round Lake Central Basin; Cambridge Township.

Lake Size & Watershed

Watershed (drainage) area
1 sq mi
Mean depth (modeled estimate)
~11 ft est.
Shoreline
1.3 mi
Elevation
968 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.

Recreation & Access

2
Boat Landings
Yes
Public Access

Fish Species

Click a species to see every graded lake where it is documented.

Fishing Round Lake Central Basin; Cambridge Township

Based on 3 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.5 m/yr3

EPA Impairment Status

Round Lake Central Basin; Cambridge Township is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

Mercury

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MI041000020106-03 · Official waterbody report · Matched by proximity (1.76 km)

Graded lakes near Round Lake Central Basin; Cambridge Township

Round Lake Central Basin; Cambridge Township has no grade, but these lakes within a short drive do.

Nearby Lakes in Lenawee County

Frequently asked questions about Round Lake Central Basin; Cambridge Township

Where is Round Lake Central Basin; Cambridge Township?

Round Lake Central Basin; Cambridge Township is a lake in Lenawee County, Michigan. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.

What is the water quality grade for Round Lake Central Basin; Cambridge Township?

Round Lake Central Basin; Cambridge Township in Lenawee County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 10 ft visibility. Surface area: 65 acres.

Is Round Lake Central Basin; Cambridge Township safe to swim in?

Not rated for swimming — there is not enough monitoring data to judge this lake. Round Lake Central Basin; Cambridge Township is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.

How deep is Round Lake Central Basin; Cambridge Township?

No published bathymetric survey covers Round Lake Central Basin; Cambridge Township, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 11 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 65 acres.

What fish are in Round Lake Central Basin; Cambridge Township?

Fish species found in Round Lake Central Basin; Cambridge Township include Blackchin shiner, Sand shiner, Spottail shiner, Tadpole madtom, Western banded killifish. Round Lake Central Basin; Cambridge Township is located in Lenawee County, Michigan.

Are there boat ramps on Round Lake Central Basin; Cambridge Township?

Round Lake Central Basin; Cambridge Township has 2 documented boat landings in the USGS National Boat Ramps inventory. Public access is listed as yes.

Where this data comes from

17 measurements from 1 monitoring station, 2017–2019. Retrieved from the EPA Water Quality Portal on 2026-08-26.

Collected and reported by

  • Michigan EGLE - MiCorps21MICH_MICORPS17 samples · 2017–2019
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

Lake size & watershed from HydroLAKES (HydroSHEDS)

Named boat-access points from the USGS National Boat Ramps inventory