In determining priorities for setting times for owners or operators to submit applications for authorization to inject under the procedures of § 144.31 (a), (c), (g) or § 144.22(f) , the Director shall base these priorities upon consideration of the following factors:
(a) Injection wells known or suspected to be contaminating underground sources of drinking water;(b) Injection wells known to be injecting fluids containing hazardous contaminants;(c) Likelihood of contamination of underground sources of drinking water;(d) Potentially affected population;(e) Injection wells violating existing State requirements;(f) Coordination with the issuance of permits required by other State or Federal permit programs;(g) Age and depth of the injection well; and(h) Expiration dates of existing State permits, if any.45 FR 42500, June 24, 1980, as amended at 48 FR 14293, Apr. 1, 1983 Clean Water Act, Safe Drinking Water Act, Clean Air Act, Resource Conservation and Recovery Act: 42 U.S.C. 6905 , 6912 , 6925 , 6927 , 6974