|
Project 113-13 - ,,w
<br /> - July 9, 1993
<br /> ` Page 2
<br /> A fourth monitoring well was installed by Parker Environmental Services at the site L t
<br /> on September 6, 1991. Soil samples analyzed from the boring were all non-detect for
<br /> TPH-g and BTEX. Groundwater samples obtained on September 11, 1991 from all - -
<br /> " 1 four monitoring wells were also non-detect-for TPH-g and BTEX. Depth to
<br />_ groundwater was 28 to 29 feet below=ground surface. .
<br /> - An aquifer pump test was'done by Parker Enviidr mental Services at the site October ' 5
<br /> "
<br /> `15 it showed that all four monitoring wells,are in the same aquifer.
<br /> A# this time no cleanup efforts`have been implemented. Decisions concerning - -
<br /> ' future investigations or remediation will be discussed after four quarterly _
<br /> monitoring reports are completed.
<br /> 4 a J
<br /> IL -Current Activities
<br /> Groundwater,samples Were,obtained on July 1, 1993 Prior to 'sampling; groundwater
<br /> -elevation measurements"were ohta ned.-Results are presented;ui the table-below. , - • " '`M
<br /> - Table 1 _
<br /> �4Cheaper3tore #7fi
<br /> -,890 North Main Street, Manteca, California `
<br /> • Groundwater Measurement Results* - >
<br /> Measured,an July 1, 1993 - �h
<br /> MW-I Y MW-2 ,MW-3 `MW-4 h
<br /> i►Vell -Elevation - _ 33.12 ` '_T 33.22 ^.--",33.55 -_ 33.66
<br /> -Depth to GW - '., -27.48 '_ 27.24 .- 27.69 _ 28.08
<br /> =GW -Elevation ,' '5.64,,' 5.98 �' , k ->5.86 5.58
<br /> M
<br /> elevation above mean sea level,,in..feet
<br /> Shallow groundwater measurements indicate the water table approximately three-- - >
<br /> feet lower-than measurements'taken;M Mar hk 1993.-As shown on the attached, -
<br /> z♦. groundwater'flow direction drawirtgr�the flow direchon,is toward the southeast,
<br /> unchanged from the,March,-1.993;jneasuremer_its.
<br /> ./��
<br /> _ M ; Each morutor'ing well was purged-.0 ng an'electri' submersible pump prior to
<br /> voxMgitell � viasovW dam earchwell, which equaledat.
<br /> 5 wL ♦ �� 7
<br /> rqueYrer "` ' _ `"` ateF` as` alacedri a sealeli-metals_
<br /> r ,
<br /> g lvt�d #n# O "sl���} � rasp ux a maple v4a 4a�tii` gra
<br /> L 'T` r , +i-s�i+ 3y h_ + h�v t �A� �t1 ,�.r�ln�. y� ;L�,
<br /> 1E �b$p b Qr PA)ille�. r ^VY �CC' OO ,_J?4tid in ll+'640_i1� IIII t�r IA-
<br /> ttr�t i , 1 •t. ,}' r �� , K ti �r' 'snr+ � �r t � 'S. rt,e
<br /> 4led.so' inhere'wa"s no r; pick t>remai,g,in them:"Samples we're labeled ` =-�f
<br /> <,
<br /> • �,
<br /> > d placed:bn fce'iri,a toole3r for# nspdrt oto a #ate ertiified hazardous materials
<br /> , _ . ,
<br /> ' `-ate"stl aborafaiy, i�Campbell Analyhca7 o#�Pachko; California-Before the ne�ct
<br /> V Yti
<br /> Wv
<br /> ' "eitfte !
<br /> �p]. A , e3l np ^s,klii VR One WCI�t{vwiih non-phos hate+5 -; n
<br /> an two "parAte burs wit tap;water� AWOurge water and equipment-
<br /> ater 'pT c¢d m 55'gallon steed drums acid remains dn;site. When the '
<br /> Parker'�Ynvlronmental Services 190 East 7th -Street Pittsburg CA-94565-6116
<br /> Phone (510) 439-1024 Fax (510) +439 -2566
<br />
|