Questions you can ask
- “Which formations have a median TDS below 50,000 mg/L?”
- “Show produced-water lithium samples above 100 mg/L in Texas.”
- “What is the median TDS for the Wolfcamp?”
| Formation | Median TDS (mg/L) | Samples |
|---|---|---|
| Example sandstone | 18,400 | 112 |
| Example limestone | 36,900 | 64 |
| Example shale | 47,200 | 29 |
Illustrative values showing the shape of an answer, not live data.
About this source
USGS National Produced Waters Geochemical Database (v3) — formation TDS + per-sample lithium-brine chemistry. No auth. DATA: - searchFormations (TDS min/max/median + counts grouped from the current v3 sample layer). - searchLithiumBrines (~6.4K samples with measured lithium Li mg/L; bundled v3.0 snapshot). RULES: 1. searchFormations: filter formation (FORMSIMPLE) and/or minMedianTds / maxMedianTds (mg/L). SWD/injection siting + water-reuse. 2. searchLithiumBrines: filter state / formation / basin / county / minLi. Returns samples + Li percentile stats — benchmark a play (e.g. Smackover) vs others. 3. Lithium subset is a static snapshot (v3.0, DOI 10.5066/P9DSRCZJ); formation TDS is grouped live from the official v3 FeatureServer.
Connector ID usgs-produced-water
Provenance
Freshness & coverage
› Methods (3)
Technical detail for developers: parameters, pagination, units, and freshness per method.
searchFormations
readSearch produced-water formations by name and median-TDS range; returns TDS stats + sample counts.
searchLithiumBrines
readPer-sample lithium (Li mg/L) by state/formation/basin/minLi; returns samples + Li percentile stats.
getServiceInfo
readField meanings, units, and the lithium-snapshot caveat.