APPCOR12146

• Permit No: C1981047
• IBM Index Class Name: Application Correspondence
• Doc Date: 12/9/1980
• From: OSM
• To: SUNFLOWER ENERGY CORP
• Media Type: D
• Archive: No

Hubbard Creels just upstream and doranstream of the
disturbed area. i~tonitoring ar_ these stations
should be on a monthly basis or during portions cE
the year when flow is intcrmittant, monitoring
should be done during each runoff event. ParameCcrr;
to be analyzed each time a sample is Lal<cn arc:
quantity, temperature, total and dissolved iron,
total manganese, TSS, TDS, pH, acidity (al.l.ali-nity),
Ca, Mg, Na, K, HC03, CO 504, and C1. Parameters
to be sampled on a one ~ime basis (or more iE high
concentrations are found) are nitrate nitrogen,
orthophosphate, and trace elements (i.e. Pb, Cd,
P.s, llg, h[o, Se, etc.).
The alluvial well ((~I-3050) should be monitored
quarterly for the same pararnetcrs listed above.
`Provide an assessment of hoca the small tributar:~
to Hubbard Creek might be impacted L•y subsiclencc
if it occurs.
784.15 A demonstration of the feasibility of
land use for grazing must be made.
784.16 Provide a map sho.aing the seven drainage
areas described in the sediment pond calculations.
Provide a readable copy of page 106 of the applica-
tion. Clarify c~~hi-ch of the four ponds (1, 2, 3,
and 4) shocm on Lxhibit A correspond to the pond
calculations (ponds 25A, PJorth Sediment Pond,
South Storm Water Pond, Pond 1, Pond 2) given in
the application.
Provide speciFic dewatering pipe and overflow weir
designs fox- each of the four ponds.
Provide pond embanF:ment cross-sections showing top
widths, heights, slopes, locations of dewaterinf;
and overflow devices, locations of rip-rap, place-
ment of fine and coarse materials, seepage barriers,
cutoff trenches, etc.
Provide the results of any geotechnical investiga-
tions, construction materials investigations, etc.
done to provide data for design and construction
requirements. This is especially pertinent to Lhe
25 acre-foot pond.