These are some of the key technical and legal documents. More documents are included in the Administrative Record.You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.)

• EPA Letter RE: Comments on the January 2020 Remedial Investigation Report - Administrative Settlement Agreement and Order on Consent - V-W-17-C-013 (PDF) (26 pp,550 K, About PDF)
• Record of Decision Amendment for the USS Lead Superfund Site Zone 1 (94 pp, 2.1 MB)
• Unilateral Administrative Order For Remedial Action For Defined Properties In Operable Unit 1 - Docket No. V-W-19-C-006 (PDF) (187 pp, 19.4 MB)
• Explanation of Significant Differences (PDF) (167 pp, 2.9 MB)
• Unilateral Administrative Order (UAO) for Interior Remedial Actions in Zone 2 or Operable Unit 1 DOCKET NO. V-W-18-C-005 (PDF) (375 pp, 13.4 MB) Jan. 2018
• Unilateral Administrative Order (UAO) for Interior Removal Actions in Zone 2 & Zone 3 of Operable Unit 1 DOCKET NO. V-W-18-C-006 (PDF) (500 pp, 20.73 MB) Jan. 2018
• Unilateral Administrative Order for Remedial Action in Zone 2 of Operable Unit 1 - Docket No. V-W-18-C-001 (PDF) (196pp, 6.0 MB)
• Unilateral Administrative Order (UAO) for Interior Removal Actions in Zone 2 and Zone 3 of Operable Unit 1 -Cocket No. V-W-18-C-002 PDF) (174pp, 13.0 MB)
• Proposed Explanation of Significant Differences (ESD) (PDF) (46 pp, 1.5 MB) Dec. 2017
• Administrative Settlement Agreement and Order on Consent for Remedial Investigation/Feasibility Study of Operable Unit 2 - CERCLA DOCKET NO. V-W-17-C-013 (PDF) (108 pp, 2.77 MB) Sept. 2017
• EPA Administrative Settlement Agreement and Order on Consent for Removal Actions in Zones 2 and 3 of Operable Unit 1 w/ Appendices [ZIP FILE] (1 pg, 54 MB) March 2017
• Final Sampling and Analysis Plan for Zones 2 & 3 - Residential Inspection (PDF) (170 pp, 4.77 MB) March 2017
• Consent Decree Relating to Response Actions & Response Costs in Zones 1 & 3 of Operable Unit 1 - Civil Action No. 2:14-CV-312 (with Appendices A-E) (PDF) (293 pp, 5.61 MB) Sept. 2017
• Record of Decision (signed)(PDF) (81 pp, 7.7 MB) Nov. 2012
• Redacted Remedial Investigation Report (PDF) (210 pp, 13.5 MB) June 2012
• Community Involvement Plan (PDF) (25 pp, 6.3 MB) April 2012
• ATSDR - Public Health Assessment (PDF) (24 pp, 4.7 MB) Jan. 2011
• Letter Re: Remedial Investigation/Feasibility Study Oversight (PDF) (18 pp, 192 K)
• Statement of Work for RI/FS (PDF) (16 pp, 848 K) Jun. 2009
• Hazard Ranking System Documentation Record (PDF) (50 pp, 1.5 MB) Sept. 2008
• NPL Narrative (PDF) (1 pg, 104 K) Sept. 2008
• EPA Action Memo Re: Request to Conduct a Time-Critical Removal Action at Residential Portion of USS Lead Site (PDF) (16 pp, 517 K) Jan. 2008