# Project Leo (Pulaski County) — EPA FRS + USGS water-facet capture > *Authoritative agency output captured 2026-06-13 via the `epa-envirofacts` and `usgs-water` MCP connectors (the [[#Primary-source sweep]] workflow). The saved `original_file` is the JSON capture of the query results. Tier 2 — primary public record; it contextualizes and corroborates the water-and-environment setting of the Project Leo vicinity and does **not** establish what any Arkansas actor did with the water or land.* ## Source metadata - **Site:** AVAIO Digital "Project Leo" — Pulaski County (FIPS 05119), 145th St near I-530, south Little Rock; ~$21B / 1 GW. Developer [[AVAIO Digital Partners]]. - **Durable locator:** EPA FRS registry IDs (see Extract); USGS OGC `monitoring-locations` collection (self-href preserved in the JSON original for re-query). - **Retrieved:** 2026-06-13, via `epa-envirofacts` + `usgs-water`. - **Query:** `search_facilities(state=AR, city=Little Rock, limit=40)`; `get_monitoring_locations(bbox=-92.55,34.55,-92.10,34.82, state_code=AR, limit=30)`. ## Extract ### EPA Envirofacts — FRS facilities in the Project Leo vicinity (south Little Rock) The city query returned **40 FRS-registered facilities**; coordinates were null for every record this pass, so proximity is read from street address / ZIP, not geocoded distance. The site- and corpus-relevant slice (the utility, the receiving-water treatment node, and the 72206/72209 industrial cluster nearest the 145th St / I-530 locus): - **ENTERGY ARKANSAS, INC.** — FRS **110030476161**, 425 W Capitol Ave Ste 370, 72201. The utility at the center of [[Who Pays for Entergy's New Generation]] carries an FRS registry entry (registry/program flags only). - **ADAMS FIELD W/W TREATMENT** — FRS **110025020117**, 101 Temple Ave, 72202. Little Rock's municipal wastewater treatment plant (Adams Field / airport district). This is the urban-core receiving-water/treatment node — the Project Leo analog to the [[Tupelo Bayou Treated-Effluent Cooling]] WWTP on which the Conway / Project Stratus cooling analysis turned. It is the first FRS anchor for an effluent-cooling hypothesis at Project Leo. - **ACXIOM CONSTRUCTION SITE** — FRS 110008253656, 4th & Sherman St, 72201 (data/ad-tech firm; noted, not load-bearing). - **South-Little-Rock cluster near the locus** — TRUCK TRANSPORT (7414 Sloane Dr, 72206); GLAZE RACE TRACK (Harper Rd, 72206); DOWDY, RONNIE TRUCKING (7414 Fraiser Pike, 72206); STONEWOOD APARTMENTS (3600 Springer Blvd, 72206); KILSBY ROBERTS (5207 Scott Hamilton Dr, 72209); SOUTHWEST SOIL REMEDIATION (CLOSED, 72204). **Boundary:** Envirofacts exposes FRS registry identity + program flags only — **no NPDES discharge compliance**. The Adams Field WWTP's effluent permit and DMRs are not retrievable here (use EPA ECHO/ICIS or a DEE/DEQ NPDES FOIA). ### USGS Water — receiving-water / aquifer baseline (query returned empty) `get_monitoring_locations(bbox=-92.55,34.55,-92.10,34.82, state_code=AR)` returned **`numberReturned: 0`** — no features for the bbox + `state_code` combination. This is the OGC endpoint's known finickiness (the same quirk the 2026-06-04 `epa-usgs-water-connector-capture` documented), **not** an absence of stations. The self-href is preserved in the JSON original. **Next step (not a dead end):** query USGS by `county_code` for Pulaski, or by explicit `monitoring_location_number` — the Arkansas River gage **USGS-07263285** ("ARK.RIV AT RIVER MILE 133 NR. MAUMELLE," already identified in the 2026-06-04 capture) is the receiving-reach gage adjacent to the Little Rock-area sites. For [[Sparta Aquifer]] drawdown, use the NWIS `gwlevels`/DV service, not OGC. ## Notes - **Tier 2** — federal agency primary data (EPA FRS + USGS). It corroborates the environmental and hydrological *setting* of the Project Leo vicinity; it does **not** establish what AVAIO, Entergy, or any Arkansas agency did with water or land (those are Tier-1 Pulaski County / Agriculture / DEE productions, several still outstanding via FOIA). - **Why it matters:** Project Leo (~$21B / 1 GW; [[AVAIO Digital Partners]]) is the largest site in the corpus and its cooling-water source is still unnamed in the federal/USACE package ([[Identifying the Unnamed Cooling-Water Data Centers]]). This capture fixes the first federal FRS anchors near the locus — the **Adams Field WWTP** (effluent-cooling candidate) and **Entergy Arkansas's** registry entry — and pins down the corrected USGS query path for the receiving-reach and Sparta baselines. - **Open gaps** (each with a next step): - **Adams Field WWTP NPDES permit + DMRs** — not in Envirofacts. Next: EPA ECHO detailed-facility report, or the DEE/DEQ NPDES file (FOIA). - **USGS receiving-reach + aquifer series** — OGC bbox query empty. Next: re-query by Pulaski `county_code` and by site `07263285`; NWIS `gwlevels` for Sparta `124SPRT`. - **Project Leo water-source confirmation** — still unnamed. Next: the outstanding Pulaski County / DEE Tier-1 FOIA productions; cross-check any [[Water-Use Registration]]. - **Cited by:** pending Joshua's review — proposed citer [[Identifying the Unnamed Cooling-Water Data Centers]]; see `_phase0_workdir/sweep_pilot_findings_2026-06-13.md`.