2021-05-04_PERMIT FILE - M2020062

• Permit No: M2020062
• IBM Index Class Name: PERMIT FILE
• Doc Date: 5/4/2021
• Doc Name: Decision Extension Request
• From: Wasteline, Inc.
• To: DRMS
• Email Name: LJW
• Media Type: D
• Archive: No

WL-PM-E/Letter to DRMS: Subject: M2020-062 Schoen Farm Response to Comments Page 2
readily available with an estimated 337,000 CY of raw material producing at least 39,000
CY of fines suitable for backfill and rooting zone use.
C. Thickness of deposit, maximum depth of mined areas: Based on well log information and
excavations, the alluvium to be mined is 50 to 80 feet thick at this location in the valley.
As stated in Item 3.g. and shown in Exhibit E, depth of mined areas (basins) is proposed
to be 5 to15 feet, or approximately 9-10 feet above expected water table. The maps in
Exhibit E show the contour interval of 5 feet. The average original ground elevation is
about 8128 ASL around the perimeter, so the maximum floor elevation would be about
8113 ASL.
d. Barbed-wire fence and livestock gate. The Landowner has not and does not intend to
commit to any additional fencing at this time as at present the Landowner does NOT
intend to install or require the operator to install fencing, but may elect to do so in the
future. IF fencing is installed (either barbed-wire or electric as stated in Item 7), the
minimum would be 1,862 linear feet, the exterior perimeter of the Yard. There would be
no fencing along the access road, hence the potential for needing a livestock gates for
the Yard itself, if the Landowner decides to install fencing.
Since the intended post-reclamation use of the site is irrigated cropland (together with the
rest of the field around it), there would be no need for exclusion fencing, since livestock
would be excluded from the entire 200+acre field by existing fences. (Note: there is
already a vehicle gate in place where the access road crosses an irrigation ditch and
enters CR-15.)
e. Scale(and scale house): The scale is included in the narrative. As stated in Item 3.a. a
truck scale MAY be located in the#1 storage/truck loading area (Staging Area on Mining
Plan, Exhibit E). Such a scale, if used, would be a portable scale and above-grade.
Because it is portable and likely would not be at this site constantly, the exact location in
that#1 storage/truck loading area (Staging Area) may vary from deployment to
deployment: therefore it is not shown intentionally on the map. No permanent, poured or
other footings/foundations would be required to set up and use the portable scale.
f. Water required: At this point, no application for a Substitute Water Supply Plan (including
a temporary change in use from agricultural to industrial, for purposes of agricultural
improvements) has been made to the State Engineer. Such a request requires only the
approval of the State Engineer and not adjudication by the Water Court. Until such time
as the State Engineer approves temporary use of irrigation water for purposes of mining
(primarily dust control and washing), the Operator will obtain water and truck it to the
Yard as necessary for operations. Such water will be obtained from a permitted source
of supply. The last sentence of Item 11 is a legacy, in error, and should be deleted and
ignored. The point at which water is to be obtained, if a SWSP is approved by DWR has
yet to be determined.
g. Retention basin: The last sentence of Item 11 is a legacy, in error, and please delete and
ignore. All precipitation will be allowed to infiltrate through the undisturbed alluvium in the
floor of the basins, either before or after use (as approved by DWR), with no surface
channel discharge. See Item i below.
h. Estimated groundwater information: See item 1.a. above.
i. Storm water system: The storm water system discussed in Item 12, in relation to
groundwater, is temporary: that is, intended to be ephemeral and change frequently as
the mining operations progress. The floor shall be shaped and graded to have shallow
basins (pans might be a better term)to which water can flow to infiltrate. This allows:
(a) movement of vehicles and equipment on the Yard to not be hindered,
(b)water to quickly infiltrate into the undisturbed alluvium in the floor of the basins, and
(c)there is as little erosion and sediment from precipitation events as possible.
The temporary detention basins are simply shallow excavations in the floor of the basins
with the rest of the floor sloping towards them. Their size and location will change
frequently based on continuing excavation and then on locations and sizes of stockpiles,
processing plants, and traffic patterns.
The objective is to make every effort to:
(a) prevent any ponding of water for more than 72 hours,
(b) reduce tracking of wet materials by vehicles, and
PROJECT: 5144.2 Schoen Farm 21 April 2021, Page 2