OH Division of Geological Survey data contract

What you can ask

“What does OH Division of Geological Survey have for the area or asset I'm working on?”
“Pull the most recent OH Division of Geological Survey records and put them in a table.”
“What does OH Division of Geological Survey cover, and how fresh is the data?”

About this source

Ohio ODNR DGS. Water wells + karst + ODNR seismic. - searchWaterWells (~651K) ⭐ filter county/aquiferType/wellUse/driller/yearFrom/yearTo/flowingOnly - searchEarthquakes (instrumental ~1.2K, historical ~1K, both) - searchKarstFeatures (~46.7K), getServiceInfo Spec drift: searchMineralLocations DROPPED — Mineral_Industry_Locations_AGOL returns HTTP 500 on every query (probed both MapServer/0 and FeatureServer/0). searchUSDWFeatures DROPPED 2026-09-08 — DGS_Services/USDW_Features/MapServer layers /2 and /4 return ArcGIS 404 Layer not found; the service now exposes only group layer 0 with empty sublayers. upstream quirks: COUNTY_DESC UPPERCASE; WELL_USE_DESC top values DOMESTIC=490K/MONITOR=42K; Karst POINT_TYPE has trailing whitespace upstream.

Connector ID oh-dgs

Provenance

PublisherOH Division of Geological Survey

API basehttps://gis.ohiodnr.gov/arcgis/rest/services/DGS_Services

Freshness & coverage

FreshnessFreshness not declared

GeographicNot declared

TemporalNot declared

AuthenticationNo credentials required

› Methods (4)

Technical detail for developers: parameters, pagination, units, and freshness per method.

searchWaterWells
read
Ohio water-well log inventory (~651K). Filter county/aquiferType/wellUse/driller/year/flowingOnly.
COUNTY_DESC UPPERCASE. WELL_USE_DESC: DOMESTIC/MONITOR/AGRIC/INJECTION.
searchEarthquakes
read
ODNR seismic catalog. catalog: instrumental | historical | both. Filter county/minMagnitude/year.
searchKarstFeatures
read
Karst points (~46.7K). Filter county/pointType/bgUnit. POINT_TYPE has trailing whitespace.
getServiceInfo
read
Schema + record counts for any of the 4 remaining services (OH Division of Geological Survey).