Issue 3 - the Montana Secretary of State Website

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Vanadium (Total) Vanadium
Vinyl acetate 108-05-4 Acetic acid, ethenyl ester
Vinyl chloride; Chloroethene 75-01-4 Ethene, chloro-
Xylene (total)
See footnote
8
Zinc (Total) Zinc
Benzene, dimethyl-
Footnote 1 remains as proposed.
2 Chemical Abstracts Service registry number. Where "Total" is entered, all
species in the ground water that contain this element are included.
Footnotes (3) through (8) remain as proposed.
NEW RULE XLII (17.50.1308) ASSESSMENT OF CORRECTIVE
MEASURES (1) Within 90 days after a determination is made pursuant to ARM
17.50.1307 that a constituent listed in Appendix II to 40 CFR Part 258 (July 1, 2008)
has been detected at a statistically significant level exceeding the ground water
protection standards defined under ARM 17.50.1307(8), or applicable Montana
ground water quality standards, the owner or operator of a facility shall:
(a) remains as proposed.
(b) submit to the department for approval an assessment of corrective
measures that addresses the criteria listed in (3) and any other criteria determined
by the department to be necessary to protect human health or the environment.
(2) through (4) remain as proposed.
NEW RULE XLIII (17.50.1309) SELECTION OF REMEDY (1) Based on the
results of a corrective measures assessment conducted under ARM 17.50.1308, the
owner or operator of a facility shall:
(a) remains as proposed.
(b) submit to the department for approval, within 90 days after the date of the
department's approval of the assessment of corrective measures plan required in
ARM 17.50.1308, a selected remedy report describing how the selected remedy
would meet the standards in (2) through (4), and how it would be implemented;
(c) through (3)(e) remain as proposed.
(4) An owner or operator required by (1) to select a remedy shall specify as
part of the selected remedy a schedule(s) for initiating and completing remedial
activities. Such a schedule must require the initiation of remedial activities within a
reasonable period of time, taking into consideration the factors in (4)(a) through (h)
(f). The owner or operator shall consider the following factors in determining the
schedule of remedial activities:
(a) through (d) remain as proposed.
(e) potential risks to human health and the environment from exposure to
contamination prior to completion of the remedy; and
(f) resource value of the aquifer, including:
(i) through (vii) remain as proposed.
3-2/11/10 Montana Administrative Register