PERMFILE112570

• Permit No: M2000158
• IBM Index Class Name: Permit File
• Doc Date: 3/27/2001
• Doc Name: First Adequacy Review Responses
• From: ENVIRONMENT INC
• To: DMG
• Media Type: D
• Archive: No

ENVIRONMENT, INC. PAGE 5
MARCH 26, 2001
14. The exact location of any swim beaches is not known at this
time. They were listed in the text as examples of what hype
of uses may occur on a lake when mining ends. Yf their
inclusion on maps is necessary, P56G states that no swim
beaches will be included in the reclamation plan unless they
are build to MLR requirements. Some flexibility is necessary
in the plan, so as the area develops PS6G and the landowners
have control over- the end use. If a swim beach is to be left
in a lake area we will commit to making them 5:1 or less as
required and showing their location in our annual report map.
One way to look at it is that if the operator chooses to leave
slopes shallower than what is required by the law they would
still be in compliance with the overall reclamation plan.
15. Attached is a letter and affidavit addressing Rule 3.1.5 (a}
to (f ).
16. The typical pond design can be seen on Adequacy Exhibit 3 and
the layout relationship of the plants is shown on Adequacy
Exhibit 2. As for reclamation, the ponds will be cleaned as
needed and when the plant site is mined they will be removed.
if they remain when mining ends the above water banks will be
reclaimed as described in the reclamation plan text and the
ponds would become lake areas.
17. The NRCS suggestion is a blanket recommendation they use in
their response to an operators request for information and as
such P56G did not chose to make it part of the reclamation
plan, after all, they are responsible for making the grass
grow and to complete reclamation as approved. I want to thank
the MRCS for their recommendation but respectfully reject it
in this case.
Rule 6.4.7 Exhibit G - Water in/ormation .
18. No water will be used during mining or reclamation and
assuming the lakes are not lined one would expect 2,274.23
acre feet or water to evaporate from the exposed lake areas
each year. This assumes that 768.32 acres of lake surface is
created with an average net annual evaporation of 2.96 ac-
ft/surface acre. Page 19 of the application shows that
average consumptive uses is estimated to be as much as 15 af=
ft per year. This would be associated with dust control,
processing and washing activities. This is for an average
year and may be higher or lower depending on actual condi-
tion's encounter in the future. The flow rates associated
with this use will vary with the dryness of the climate and
other uncontrollable variable. The estimated amount of water
lost with finished product is 48 by weight so it is consistent
with OSE guidelines and is included in the 15 ac-ft estimate.
19. Platte Sand 6 Gravel LLC has no current water rights to use
for make up water. They are working on this and be assured