Where is Ilion Reservoir Number Three?

Ilion Reservoir Number Three is a lake in Herkimer County, New York. Its water-quality measurements are published by NY DEC and shown on this page as reported.

How deep is Ilion Reservoir Number Three?

Ilion Reservoir Number Three has a maximum depth of 52.5 feet. The lake covers 38 acres.

Are there campgrounds on Ilion Reservoir Number Three?

Ilion Reservoir Number Three has 1 public campground from USGS The National Map within 5 km, including Village of Ilion Marina and RV Park. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.

Ilion Reservoir Number Three

Herkimer County, New York38 acresView map Directions

No nutrient or algae sampling on record from NY DEC for this lake.

Max depth

52.5 ft

Bathymetric survey

Area

38 acres

Surface area

Shoreline

1.2 mi

Measured length

Impaired · Metals (other than mercury)
53 ft max depth

See the measurements Directions Where to stay

Ilion Reservoir Number Three in Herkimer County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 52.5 ft. Surface area: 38 acres.

Loading map…

Ilion Reservoir Number Three is a 38-acre lake in Herkimer County, New York with a maximum depth of 53 feet.

Source: EPA Water Quality Portal sampling records, NYSDEC. Methodology: how these readings are compared.

What Ilion Reservoir Number Three is good for

From access and monitoring records, not editorial picks.

Camping1 public campground nearby
Deep water52.5 ft surveyed max depth

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Ilion Reservoir Number Three is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury). Check local advisories before you swim.

Whether Ilion Reservoir Number Three is safe to swim in today is a call for the New York Department of Environmental Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

Compare swimming lakes near Syracuse →

Get alerts for Ilion Reservoir Number Three →

Water quality measurements for Ilion Reservoir Number Three

These are the measurements NY DEC publishes for Ilion Reservoir Number Three, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Ilion Reservoir Number Three

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

52.5 ft

Surface area

38 acres

Shoreline

1.2 mi

Recreation & Access

Campgrounds

Public campgrounds near Ilion Reservoir Number Three

Village of Ilion Marina and RV Park3.8 km

Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes

Stays via Stay22

Stays near Ilion Reservoir Number Three

Compare lakeside cabins, hotels, and vacation rentals near Ilion Reservoir Number Three in Herkimer County, New York — 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 Ilion Reservoir Number Three

Prices for Oct 16–18, 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 New York’s top lakes →

Follow Ilion Reservoir Number Three’s readings

Email me when new measurements post for this lake. Updates stay free.

Or email

Fishing Ilion Reservoir Number Three

→ Ilion Reservoir Number Three fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Ilion Reservoir Number Three is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).

Causes of impairment

Metals (other than mercury)

Designated uses not supporting: Drinking water.

Source: EPA ATTAINS assessment unit NY1201-0198 · Official waterbody report

Nearby Lakes in Herkimer County

Weaver Lake10.5 miView →Young Lake11.2 miView →Spruce Lake16 miView →Kyser Lake14.2 miView →East Canada Lake14.6 miView →Hinckley Reservoir—View →

Frequently asked questions about Ilion Reservoir Number Three

Where is Ilion Reservoir Number Three?: Ilion Reservoir Number Three is a lake in Herkimer County, New York. Its water-quality measurements are published by NY DEC and shown on this page as reported.
What is the water quality of Ilion Reservoir Number Three?: Ilion Reservoir Number Three in Herkimer County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 52.5 ft. Surface area: 38 acres.
Is Ilion Reservoir Number Three safe to swim in?: Nutrient and algae readings are not a swimming clearance. Ilion Reservoir Number Three is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury). Check local advisories before you swim.
How deep is Ilion Reservoir Number Three?: Ilion Reservoir Number Three has a maximum depth of 52.5 feet. The lake covers 38 acres.
Are there campgrounds on Ilion Reservoir Number Three?: Ilion Reservoir Number Three has 1 public campground from USGS The National Map within 5 km, including Village of Ilion Marina and RV Park. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.