PERMFILE60873

• Permit No: C1980003A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: Attachments A, D to F
• Section_Exhibit Name: 1996 PREFACE TO PERMIT APPLICATION
• Media Type: D
• Archive: Yes

Permanent Impoundment Checklist
[mpoundment: Pond 003
•
L J

.vlsne: Hayden Gulch Loadout Facility Date review completed: 5/20!99
Permit No.: C-92-081 CDMG reviewer: Tom KaldenbaCh
Document where demonstration is located: SL•03 file
tntendea use of impoundment: Postmining land use of wildlife and livesttxk watering
Demonstra
Demonstrations required by Section 4.05.9 (1) -lion

adequate Comment
(Yes / Na)
(a) The quality of the impounded water shall be Monitoring data indicate a trend in quality that
suitable on a permanent basis for its intended will be suitable for livestock and wildlife use,
use, and discharge of water from the YeS and will comply with NPDES limitations.
impoundment shall meet applicable State and CW/QCC basic surface water standards, and
Federal water ualit standards; CW 'nstream standards.
(b) The level of water shall be sufficiently stable This spring-fed pond has maintained
and the conFguration of the pond shall be YeS adequate level for intended use for several
ade uate to su ort the intended use; eazs. Confi ration is ade uate for use.
(c) Adequate safety and access to Safety and access have been demonstrated by
impounded water shall be provided for YeS historical and existing wildlife use.
ro osed water users:
(d) Water impoundments, shall not result in the CDMG concluded that discharges from
diminution of the quality or quantity of water impoundment will not caux material damage
available to water right holders for agricultural,
YeS to existing or future water uxrs downstream
industrial, recrea[ional, or domestic uses except (see CDMG letter of 12/18/98 in SL-04 file).
in accordance with applicable State law; Minimal seepage will caux negligible ground
water im acts.
(e) The design, conswction and main[enance of CDMG verified compliance with Std. 378 in
permanent impoundments not meeting [he size midterm review of 19845 (see CDMG letter of
requirements of 4.05.9(3) shall achieve the 1 I/25/85 in Phase I bond release submittap and
maximum design requirements of U.S. Soil verified again in current. SL-03, review. Vol.
Conservation Service Public Standard 378, •YeS III. Appendix E of permit indicates Pond 003
"Ponds", Colorado, January. 1989. Copies of was designed and constructed in compliance
this publication are available at the office of the with Std. 378. Quarterly pond reports indicate
Division for public inspection. pond has been maintained in compliance with
Std. 378.
(F) The impoundmen[ spillway system shall also be CDMG verified compliance when spillway
designed in accordance with the requiremenu was constructed. Spillway remains as
of Rule 4.05.6(3)(d) or 4.OS.tS(3)(e). The design originally constructed.
event requirement of Rule 4.05.6(5)(b) shall be
applied for those impoundments not meeting YeS
the size or other criteria of Rule 4.05.9(3).
unless a lazgec design event is required by the
U.S. Soil Conservation Service Public Standard
378 Publication, Janu , 1989.
(g) The size of the impoundment is adequate for its YeS
intended u ores:
(h) The impoundment, will be suitable For the
YeS Current wildlife ux indicates suitability for
a roved ostminin land use: and future wildlife and livestock use.
(i) The vertical portion of any remaining highwall There is no remaining highwall.
shall be located far enough below the low-
waterline along the full extent of highwall to Yes ,
provide adequate safety and access for the
ro oxd water users.
~ ' tg JAN 1 3 2000