Waterloo Lake
Waterloo Lake in Grayson County, Texas is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 46 acres.
- Area
- 46 acres
- Public access
- Yes
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Why Waterloo 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 Waterloo Lake, no water-quality sampling on record for this lake.
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 TCEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Waterloo Lake is a 46-acre lake in Grayson County, Texas. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled recent years. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Waterloo Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Waterloo Lake
Compare lakeside cabins, hotels, and vacation rentals near Waterloo Lake in Grayson County, Texas — 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 Waterloo Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 46 acres |
| Public Access | Yes |
No bathymetric survey has been published for Waterloo Lake, so its depth is not documented here.
Recreation & Access
- Waterloo LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Waterloo Lake
Nearby Lakes in Grayson County
Frequently asked questions about Waterloo Lake
Where is Waterloo Lake?
- Waterloo Lake is a lake in Grayson County, Texas. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Waterloo Lake?
- Waterloo Lake in Grayson County, Texas is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 46 acres.
Is Waterloo Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Waterloo Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Waterloo Lake?
- Waterloo Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Waterloo Lake. Public access is listed as yes.
Explore Waterloo Lake across LakeQuality
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Where this data comes from
Measurements for Waterloo Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory