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Allen County RSEI toxic-release inventory (EPA RSEI Public Data Set)

Per-facility Risk-Screening Environmental Indicators (RSEI) results for Allen County, OH (FIPS 39003), reduced from EPA’s RSEI Public Data Set. Every figure here was summed from RSEI rows — nothing is fabricated, inferred, or estimated by BOSC. Regenerate with watermark rsei.

What RSEI is

RSEI is EPA’s screening model over Toxics Release Inventory (TRI) reports. For each reported release it combines the pounds released, the chemical’s toxicity weight, and (for the Score) fate-and-transport + the surrounding population into two comparative measures:

• RSEI Score — modeled, population-weighted, unitless. Comparative only: it is not a risk estimate, a dose, or a concentration. Used to rank/triage.
• RSEI Hazard — pounds × toxicity weight, with no exposure/population term.
• Cancer / Non-cancer Score — the Score split by health endpoint (CScore/NCScore).

Source

The prior v234 release was distributed through the AWS Open Data bucket s3://epa-rsei-pds; that bucket is frozen at v234/2016 and does not carry v2.3.12, so the connector was re-pointed to EPA’s gaftp Public Release Data (#1148). The legacy per-table-gzip layout is still reachable via rsei_distribution="s3_gz".

How the inventory is built

RSEI is a relational dump. watermark rsei joins five tables and keeps only the rows that roll up to a county-39003 facility:

elements   (ReleaseNumber)   -> Score, CScore, NCScore, Hazard, Population
  via release    (ReleaseNumber -> SubmissionNumber, Media, PoundsReleased)
  via submission (SubmissionNumber -> FacilityNumber, ChemicalNumber, SubmissionYear)
  via facility   (FacilityNumber -> name, coords, parent, NAICS1)
  via chemical   (ChemicalNumber -> name, CAS, ToxicityCategory)

• Pounds are summed from the reported release rows (PoundsReleased), bucketed by media via media.csv (MediaCode: 1 air, 3 water, 4 underground, 5 land, 6 POTW, 7 offsite).
• Score / Cancer / Non-cancer / Hazard are summed from the modeled elements rows. elements carries Hazard directly — BOSC does not recompute it.
• Codes use the primary reported NAICS1 field. v2.3.12 is NAICS-only — it dropped the SIC1 and NPDESPermit facility columns v234 carried, so sic / npdes_permit are now always null. Text is Latin-1.

Files

• inventory.yaml — provenance meta block + the 49 facilities, ranked by Score, each with cumulative Score/Cancer/Non-cancer/Hazard/pounds, a per-year series, a by-media pounds breakdown, and the top contributing chemicals.
• toxic-discharge-screen.yaml — the toxic-load × assimilative-capacity screen (watermark toxics): the 13 facilities that release toxics to water, placed on their receiving stream and read against the cited 7Q10 (see below).

Toxic-discharge screen (toxic-discharge-screen.yaml)

watermark toxics extends the hydrology low-flow assimilative screen from the three municipal WWTPs to the industrial dischargers — the RSEI facilities with water-media releases — using only committed artifacts (RSEI × ECHO × the cited 7Q10), no network.

• Receiving water is resolved on a ladder, never invented: ① a coordinate match to an EPA ECHO facility carrying a cited receiving water (source: connector); ② else membership in the Ottawa River industrial corridor at Lima, a coordinate-cluster inference (source: assumption, flagged * in the CLI); ③ else left null and reported uncharacterized.
• Screening concentration is a coarse derived order-of-magnitude value — annual reported water pounds, fully mixed at the receiving stream’s 7Q10, no decay/mixing zone. It is a screen, not a permit determination or a measured concentration.
• Flag bands key on that concentration (the water pathway), not the total RSEI Score (which can be air-driven): critical ≥ 1 mg/L, elevated ≥ 0.01 mg/L.

The finding: the county’s three largest water dischargers — INEOS Nitriles, Lima Refining, PCS Nitrogen — cluster on the Ottawa River at Lima, whose cited 7Q10 is 0.2 cfs (1Q10 = 0). Their releases screen at ~51 / 131 / 263 mg/L at design low flow: the largest toxic load meets the smallest assimilative capacity. Only Lima Refining’s receiving water is independently ECHO-cited (OH0002623 → Ottawa River); the other two are corridor inferences.

Caveats / gaps

• A facility with reported pounds but a zero Score released only non-modeled media/chemicals in the modeled years — that is faithful to the data, not a gap (9 of 49 Allen County facilities).
• RSEI covers TRI reporters only. Small/unpermitted sources and non-TRI chemicals are out of scope by construction.
• The Score reflects the modeling vintage and population layer of v2.3.12; absolute values are comparable within this version, not across RSEI versions.
• The bulk archive (RSEIv2312_Public_Release_Data.zip ~447 MB; elements ~1.2 GB unzipped) is not committed — it caches under the git-ignored data/cache/rsei/ and tables are streamed straight out of the zip. Only this curated YAML is committed.

Corridor relevance

• U.S. ARMY JSMC / GENERAL DYNAMICS LAND SYSTEMS is Allen County’s #4 RSEI Score (~3.05 M, 98% cancer-driven, mostly nickel compounds), independently corroborating the GDLS-at-JSMC reading in the defense-contractor scan.
• The per-facility water pounds bucket ties into the hydrology thread and the toxic-discharge screen above. (v2.3.12 no longer carries a facility NPDESPermit; receiving-water joins to the Maumee NPDES inventory now go through ECHO coordinate matches.)

Cataloged datasets — generated from data/catalog/reference/; run watermark catalog render --apply after editing an entry.

rsei — RSEI Toxic-Discharge Water Screen

Source: EPA RSEI (water-media releases) × EPA ECHO (receiving water) × Ohio EPA cited 7Q10 — a multi-source derivation · License: U.S. Government work (public domain) · Access: public · Site scope: basin-shared · Refresh: on-demand

Regenerate: watermark rsei

rsei-inventory — Allen County, OH RSEI Toxic-Release Inventory (EPA RSEI Public Data Set v2.3.12)

Source: EPA RSEI Public Data Set v2.3.12 (EPA gaftp Public Release Data), version v2312 · License: U.S. Government work (public domain) · Access: public · Site scope: slug-scoped · Refresh: on-demand

Regenerate: watermark rsei