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01 0 • The subject site encompasses 48.6 acres and is situated between about 500 feet and 2800 feet east of the northerly end of Murphy Parkway. The planned construction is a single distribution warehouse with planned dimensions of about 510 by 1680 feet. The building construction is expected to be of concrete tilt-up-panel design with a concrete slab-on-grade floor. The property is bordered on the north by the shuttered Pilkington glass plant, and on the south by warehouse, trucking and distribution businesses. A pasture and lands of a Simplot fertilizer plant are to the east of the subject parcel. A shuttered cogeneration plant that apparently supplied the Pilkington plant, occupies the northerly portion of the parcel between Murphy Parkway and the subject site. An earth berm, power lines, and chain link fencing are along the northerly border at the glass plant. A drainage swale with trees is along the southerly edge of the site. Wire fencing is along the westerly border. • An eight to ten-foot deep depression of an apparent fonner pond is on the northwesterly portion of the site. It appears the pond may have been used for disposal by the adjacent glass or cogeneration plants. Aerial photos also suggest that glass had been stored or disposed of on the northwesterly comer of the property, and was later spread further to the south. We observed considerable amounts of broken glass on the surface and mixed into the surface soils of the west edge of the subject property as well as on the southerly portion of the cogeneration parcel to the west. Comment: this provides some clarification about the term/origin of the term depression, previously used in earlierAGE reports as well as information about the locations of surficial waste. • Groundwater was encountered in the test borings at depths varying from 13 to 17 feet bgs. After drilling, water levels in the borings appeared to stabilize at depths of about varying from about 11 to 14 feet below the site grade. • Boring 2 was drilled on the northwesterly comer of the property and found about"five feet of fill on the surface." The fill was observed to consist loose to medium dense silty fine sands and to contain glass fragments and shards. Boring 2 was located in an area that is shown on aerial photographs to have supported large piles of glass beads or fragments. Except for the surface fills at Boring 2, the test borings revealed relatively uniform soil conditions across Murphy Parkway Warehouse the property. Comment:Based on review of boring log B-2, it appears glass fragments and shards extended to approximately 5 feet bgs as stated in the report text. • The building pad and pavement areas should be cleared of surface vegetation, trees and root systems, rubble fragments exceeding three inches in maximum dimension, rubbish, and any other debris.Any earth berms, stockpiled soils and any other existing fills should be removed. Fills were found in Boring 2 to a depth of about five feet on the northwesterly comer of the property. These fills should be overexcavated to allow replacement as engineered fill. Test excavations should be made on the northwesterly comer of the property and adjacent areas with our representative present to check for the presence of old fill materials. Unsuitable soils identified by our representative should be removed. go'c's21, Ift"I""'"'I",", _w"I' ", "I MI" 01",'"""I'll This figure shows an area of the unpaved dirt road outlined in yellow, not explained on the figure or in the Legend. The figure indicates eight proposed east-west trending trenches all identified as "T#100" located southwest of previously explored areas and the Legend identifies these trenches as"Proposed Soil Trenching Designation (Not to Scale)."The file name of the document was "LEA Meeting 04-2017 Figure 3-PROPOSED.PDF" suggesting the figure was used in April 2017. Ninyo&Moore 1 500 E.Louise Avenue,Lathrop,San Joaquin County,California 1 104690095 1 August 11,2017 5