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§ 146.9 40 CFR Ch. 1 (7-1-88 Edition) Env'
<br /> shall set forth the proposed test and (Clean Water Act,Safe Drinking Water Act, Su
<br /> all technical data supporting its use. Clean Air Act, Resource Conservation and
<br /> The Administrator shall approve the Recovery Act: 42 U.S.C. 6905, 6912, 6925,
<br /> request if it will reliably demonstrate 6927,6974) 614,
<br /> the mechanical integrity of wells for [45 FR 42500,June 24, 1980,as amended by ,I,.
<br /> which its use is proposed. Any alter- 48 FR 14293,Apr. 1,19831
<br /> nate method approved by the Admin- stat
<br /> istrator shall be published in the FED- 9 146.10 Plugging and abandoning Class con
<br /> EeA1. REcrsTEx and may be used in all I-III wells. wel
<br /> States unless its use is restricted at the (a)Prior to abandoning Class I to 111 914
<br /> time of approval by the Administrator. wells the well shall be plugged with U
<br /> (e) In conducting and evaluating the cement in a manner which will not suc
<br /> tests enumerated in this section or allow the movement of fluids either for
<br /> others to be allowed by the Director, into or between underground sources mo;
<br /> the owner or operator and the Direc- of drinking water. The Director may QUE
<br /> for shall apply methods and standards allow Class III wells to use other plug- der
<br /> generally accepted in the industry. ging materials if he is satisfied that (1
<br /> When the owner or operator reports such materials will prevent movement an(
<br /> the results of mechanical integrity of fluids into or between underground me
<br /> tests to the Director, he shall include sources of drinking water. gro
<br /> a description of the test(s) and the (b) Placement of the cement plugs cas
<br /> method(s) used. In making his/her r�
<br /> evaluation, the Director shall review shall be accomplished by one of the stfollowing: shE
<br /> monitoring and other test data sub- (lo The Balance method; cY
<br /> mitted since the previous evaluation. ape
<br /> (2)The Dump Bailer method;
<br /> [45 FR 42500,June 24, 1980, as amended at (3)The Two-Plug method;or qui
<br /> 46 FR 43162,Aug.27, 1981;47 FR 4999,Feb. (4) An alternative method a be
<br /> 3,19821 by the Director, which will rel ably
<br /> §146.9 Criteria for establishing permitting Provide a comparable level of protec-
<br /> sw
<br /> priorities. tion to underground sources of drink- ink
<br /> In determining priorities for setting ing water.
<br /> times for owners or operators to (c) The well to be abandoned shall
<br /> submit applications for authorization be in a state of static equilibrium with str
<br /> to inject under the procedures of the mud weight equalized top to no
<br /> § 144.31 (a), (c), (g) or § 144.22(f), the bottom, either by circulating the mud cal
<br /> Director shall base these priorities in the well at least once or by a com-
<br /> upon consideration of the following Parable method prescribed by the Di- fol
<br /> factors: rector, prior to the placement of the
<br /> (a) Injection wells known or suspect- cement plug(s). ini
<br /> ed to be contaminating underground (d) The plugging and abandonment
<br /> sources of drinking water; plan required in 40 CFR 144.52(a)(6)
<br /> (b) Injection wells known to be in- and 144.51(n) shall, in the case of a th
<br /> jecting fluids containing hazardous Class III project which underlies or is co
<br /> contaminants; in an aquifer which has been exempt- th
<br /> (c) Likelihood of contamination of ed under 40 CFR 146.04, also demon- to
<br /> underground sources of drinking strate adequate protection of USDWs. to
<br /> water; The Director shall prescribe aquifer ar
<br /> (d)Potentially affected population; cleanup and monitoring where he ar
<br /> (e) Injection wells violating existing deems it necessary and feasible to ex
<br /> State requirements; insure adequate protection of USDWs. pE
<br /> (f) Coordination with the issuance of (Clean Water Act,Safe Drinking Water Act, to
<br /> permits required by other State or Clean Air Act, Resource Conservation and of
<br /> Federal permit programs; Recovery Act: 42 U.S.C. 6905, 6912, 6925, s1:
<br /> (g) Age and depth of the injection 6927,6974) tc
<br /> well;and [45 FR 42500, June 24, 1980, as amended at al
<br /> (h) Expiration dates of existing 47 FR 5000,Feb.3,1982 48 FR 14293,Apr.1, P(
<br /> State permits,if any. 19831 p]
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