UIC Class I non-hazardous waste injection well facility with one (1) existing injection well, known as Well Chalk Cliff WD-2, located at the Chalk Cliff Power Plant in Maricopa, California.
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Notice of Final Permit Decision: Issuance of the Class I Non-Hazardous Permit No. R9UIC-CA1-FY17-4 for Chalk Cliff Limited (PDF)(2 pp, 177 K,
September 29, 2020)
Formal notice of the permit decision, explanation of the appeals process, and the final permit effective date.
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Response to Comments: Class I UIC Permit No. R9UIC-CA1-FY17-4 for Chalk Cliff Limited (PDF)(1 pg, 145 K,
September 28, 2020)
Provides a summary of the comment received during the public comment period and response to the comment.
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Class I UIC Permit No. R9UIC-CA1-FY17-4 for Chalk Cliff Limited (PDF)(32 pp, 423 K,
September 29, 2020)
Final Class I Non-hazardous Industrial Waste Injection Well Permit No. R9UIC-CA1-FY17-4 for injection operations at Chalk Cliff Limited, Maricopa, CA.
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EPA Fact Sheet: UIC Permit No. R9UIC-CA1-FY17-4 for Chalk Cliff Limited (PDF)(8 pp, 253 K,
September 29, 2020)
This Fact Sheet describes the principal facts and considerations for UIC Permit No. R9UIC-CA1-FY17-4 for Chalk Cliff Limited, including background information, facility description, and information on permit conditions.
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Appendices: UIC Permit No. R9UIC-CA1-FY17-4 for Chalk Cliff Limited (PDF)(56 pp, 3 MB,
August 13, 2020)
Appendices A-I to the Final Class I Non-hazardous Industrial Waste Disposal Well Permit No. R9UIC-CA1-FY17-4 for injection operations at Chalk Cliff Limited, Maricopa, CA.