Section 35-11-904 - Civil or criminal remedy(a) Except as provided in subsection (c) of this section, any person having an interest which is or may be adversely affected, may commence a civil action on his own behalf to compel compliance with this act only to the extent that such action could have been brought in federal district court under Section 520 of P.L. 95-87, as that law is worded on August 3, 1977: (i) Against any governmental entity, for alleged violations of any provisions of this act or of any rule, regulation, order or permit issued pursuant thereto, or against any other person for alleged violations of any rule, regulation, order or permit issued pursuant to this act; or(ii) Against the state of Wyoming, department of environmental quality, for alleged failure of the department to perform any act or duty under this act which is not discretionary with the department.(b) Actions against the state of Wyoming, department of environmental quality, pursuant to this section shall be filed in the district court for Laramie county. Actions against any governmental entity, or any other person pursuant to this section shall be filed in the district court for the county in which the violation is alleged to have occurred.(c) No action pursuant to this section may be commenced: (i) Prior to sixty (60) days after the plaintiff has given notice in writing of the violation and of his intent to commence the civil action to the department and the alleged violator, except that such action may be brought immediately after such notification if the violation complained of constitutes an imminent threat to the health or safety of the plaintiff or would immediately affect a legal interest of the plaintiff; or(ii) If the department, through the attorney general, has commenced a civil action to require compliance with the provisions of this act, or any rule, regulation, order or permit issued pursuant to this act, but in any such action any person may intervene as a matter of right.(d) The state of Wyoming, department of environmental quality, may intervene as a matter of right in any action filed pursuant to this section.(e) The court, in issuing any final order in any action brought pursuant to this section, may award costs of litigation, (including attorney and expert witness fees), to any party whenever the court determines such award is appropriate.(f) The availability of judicial review established pursuant to W.S. 16-3-114 shall not be construed to limit the operation of rights established in this section.(g) Nothing in this act shall in any way limit any existing civil or criminal remedy for any wrongful action arising out of a violation of any provision of this act or any rule, regulation, standard, permit, license, or variance or order adopted hereunder.