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2022-11-18_PERMIT FILE - M2022048 (5)
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2022-11-18_PERMIT FILE - M2022048 (5)
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Last modified
11/21/2022 8:37:47 PM
Creation date
11/21/2022 10:14:48 AM
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Template:
DRMS Permit Index
Permit No
M2022048
IBM Index Class Name
Permit File
Doc Date
11/18/2022
Doc Name
Application
From
L.G. Everist, Incorporated
To
DRMS
Email Name
ECS
MAC
AWA
Media Type
D
Archive
No
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Exhibit G Water Information (cont) <br /> for Norgren Farms and is in the process of filing a name change. <br /> There are 2 monitoring wells along WCR 32 . 5 owned by Metro <br /> Wastewater Reclamation District, the eastern most one is more <br /> than 600 feet from the permit line. <br /> Prior to exposing groundwater or installing a slurry wall <br /> liner in any permit area, a well survey will be performed on any <br /> shallow wells within 200 feet of the phase . Wells that are <br /> located within 200 feet of the permit area, that do not need to be <br /> tested are (a) owned by L.G. Everist, Inc. , (b) monitoring wells, <br /> (c) deep wells, because deep wells will not be affected by <br /> potential surface impacts due to mining. L.G. Everist will <br /> attempt to obtain for each shallow well to be tested the following <br /> data: <br /> • Basic Well construction data that is currently available. <br /> • Total well depth <br /> • Depth to static water level, <br /> • Depth of pump intake <br /> • Conduct pump test to determine well yield (subject to DWR <br /> Regulations) <br /> • Conduct analytical sampling of all Domestic Drinking Water <br /> parameters for any residential wells . <br /> All data collection will be completed at L.G. Everist' s <br /> expense . Data will be provided to DRMS and the well owner upon <br /> their request . If a well owner chooses not to allow the permittee <br /> access to collect the above data, they will be provided with a <br /> form that they can sign and date to document that they have been <br /> provided with an opportunity to have their well characterized at <br /> the permittee' s expense, but have chosen to decline to <br /> participate. <br /> L.G. Everist, Inc. has installed 6 piezometers (a.k.a. <br /> Monitoring Wells) around the mine. Their locations are shown on <br /> the maps and on MAP EXHIBIT G-1 WELL MAP. L.G. Everist started data <br /> collection in July 2019 and will do monthly readings throughout <br /> the life of the mine . We will provide a summary of the data <br /> yearly with the Annual Report . <br /> Mitigation Trigger <br /> Starting in July 2019, L.G. Everist, Inc. began to collect <br /> groundwater elevations from newly installed monitoring wells on <br /> and around the mine area to establish historic ground water <br /> elevations around and on the site. The period July 2019 until <br /> installation of the Phase 1 liner will be used as the baseline for <br /> triggering mitigation actions . The baseline data needed for the <br /> L.G. EVERIST, INC. -WEST FARM RESERVOIRS 29 November 2022 <br />
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