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SU0006291
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SU0006291
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Entry Properties
Last modified
5/7/2020 11:32:16 AM
Creation date
9/4/2019 10:37:41 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2600 - Land Use Program
RECORD_ID
SU0006291
PE
2605
FACILITY_NAME
PA-0600277
STREET_NUMBER
26255
Direction
E
STREET_NAME
BRANDT
STREET_TYPE
RD
City
CLEMENTS
APN
02324001
ENTERED_DATE
10/3/2006 12:00:00 AM
SITE_LOCATION
26255 E BRANDT RD
RECEIVED_DATE
10/3/2006 12:00:00 AM
P_LOCATION
99
P_DISTRICT
004
QC Status
Approved
Scanner
SJGOV\rtan
Supplemental fields
FilePath
\MIGRATIONS\B\BRANDT\26255\PA-0600277\SU0006291\APPL.PDF \MIGRATIONS\B\BRANDT\26255\PA-0600277\SU0006291\CDD OK.PDF \MIGRATIONS\B\BRANDT\26255\PA-0600277\SU0006291\EH COND.PDF \MIGRATIONS\B\BRANDT\26255\PA-0600277\SU0006291\CORRESPOND.PDF
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EHD - Public
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upland plateau areas proposed for excavation, but these drainages do not support a <br /> noticeable variation'in flora <br /> M <br /> Depth to shallow ground wa#er beneath the,property isnot known but explorattan <br /> of the aggregate reserve suggests it i greater than'3U feet below the siface.: <br /> i <br /> Most wells yi the area are drilled to a depth of 200;to 300 feet: Two.Tertiary aged. <br /> geologic formations lie beneath'the o erbur en. 't, O'I;aguna Formation; a`glacial. <br /> ` <br /> meltwater deposit that includesf the econoituc sand and gravel"deposits present 'at <br /> the site, ah the 11i166 Formation, a consglidated,clay and sandstone. Previous <br /> drilling conducted`at the site indicates tha# theMehrten'`Formation is present <br /> below grade:-at the property from 0`to. over 400 feet If. ounii water is perched <br /> on top of the Mehrten Formation,none was detected during"exploration. <br /> Ground water within the region is withdrawn froiri'the Mehrten Formation <br /> and.the <br /> underlying Valley�Springs Formation. brourid wat. flow direction is towards the <br /> Central Valley to the 'West. 'This#lbw.can be influenced locally and regionally'by <br /> surface topography, recharge and discharge areas, horizontal/vertical <br /> inconsistencies 'in the types and location of'subsurface.soil .and bedrock, and <br /> proximity to pumping wells. <br /> KRC supplements its water for processing from two production wells drilled at <br /> the site. The main production well was drilled to a depth of 700 feet below land <br /> surface (bls). Well completion consists of 18-inch conductor casing extending <br /> from the surface to a depth of 39 feet followed by blank 14-inch casing to a depth <br /> of 255 feet b1s. The interval between 255 and 315 feet bls is perforated with 1/8- <br /> inch by 3-inch holes, with blank casing extending from 315 to 338 feet bls. The <br /> remainder is not cased(open hole completion). In the second well, 14-inch casing <br /> extends to a depth of 355 feet bls with open hole completion to a depth of 640 <br /> feet. The locations of these wells are shown on Exhibit III. <br /> A step-drawdown aquifer test was performed on March 26, 1992, using the first <br /> (main)production well. The test consisted of four pumping rates(steps) that were <br /> held for 45 minutes each, proceeding from a low pumping rate of 475 gallons per <br /> minute (gpm) to successively higher rates of 690, 1000, and 1310 gpm. Water <br /> levels and corresponding drawdown measurements were recorded by a <br /> hydrogeologist throughout the test in the pumping well. Drawdown on the <br /> pumping well was about 23.15 feet below the original static water level(swl) after <br /> 45 minutes of pumping 1310 gpm. The original static water level was 225.5 feet <br /> below land surface. It is estimated that a stable drawdown of about 25 feet would <br /> occur after one day of pumping at the maximum flow rate of 1310 gpm. Based on <br /> the drawdown data, the specific capacity of the well ranged from 59.2 gpm/ft at <br /> 475 gpm to 56.7 gpm/ft at a pump rate of 1310 gpm. At the highest pumping rate, <br /> the wells efficiency is 96 percent of that of the low rate, which is very good. <br /> Water quality results for the production well are provided in the EIR for the <br /> existing mine permit area. <br /> Distribution Copy Page 3 of 14 August 2, 2006 <br />
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