ARCHIVED REPORTS FIRST QUARTER GROUNDWATER MONITORING REPORT FEBRUARY 2014

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' Table B -Historic Diesel Thickness Measurements and Product Recovery Data(06/18/99 through 3/31/14) Depth lu Cumulative Uale Recovery Floatin Depth to Diesel Diesel g Operations and Maintenance Notes WDiesel ell Grv..do ter Thickness Removetl ' (gallons) RW-2 11.72 11,81 0.09 15.00 Absorbent sock inserted in RW-2.Skimmer pump damaged;regulator damaged but is 5�1402 repairable.Nitrogen supply line was damaged and leaked N2.0.5 gallons ofproduct RW-4 11.05 11.06 0.01 13.00 removed from RW-4. ' RW-2 11.80 11.90 0.10 15.00 Pump inserted in RW-2;skimmer set for(3)one-minute cycles/day.Due to assembly 5 I'01_ damage,the N2 tank was replaced and the operating pressure gauge repaired.Absorbent RW-4 11.13 11.15 0.02 13.00 sock inserted as RW-4. ' RW-2 12.16 12.17 - 15.00 N2 tank was empty upon arrival and valve was in closed position.Skimmer pump 5/21/02 removed and absorbent sock inserted into RW-2.Pump,timer,N2 lank and battery RW-4 0.00 11.32 0.00 13.00 brought back to office. 6/17/02 RW-2 12.41 12.44 0.03 15.00 ' RW-4 0.00 11,65 0.00 13.00 Skimmer pump is not at site. RW-2 12.86 13.15 0.29 15.00 Absorbent socks RW-2 and RW-4 drained and replaced.Skimmer um was not set u 7125/02 P pump P RW-4 12.16 12.21 0.03 13.25 due to lack of sutTicient product.0.25 gallons ofproduct removed from RW-4. ' 8,13/02 RW-2 11.58 :0.86 0.02 3.25 1.62 0.04 15.00 RW-4 10.84 1Absorbent socks in place in RW-2 and RW-4. 1 RW-2 13.14 13.50 0J6 15.00 8.14/02 RW-3 12.95 12.97 0.15 Absorbentsocks RW-2 and RW-4 removed and strained.Both socks inserted in RW-4. RW-4 12.37 12.52 0.02 13.25 1Skimmer pump installed in RW-2;skimmer set for(3)5-minute cycles/day. 8,16,02 RW-2 13.12 13.51 0.3913.25 5.00 Skimmer pump left in RW-2; RW-4 1skimmer set for(3)5-minute cycles/day. RW-2 13.25 13.66 0.41 15.00 The N2 supply system had apparently been impend with;the skimmer pump was ' 8/22/02 inoperative.System was removed from the site for inspection/repair.Recovery socks RW-4 12.46 12.94 0.48 13.25 placed in both RW-2 and RW-4.21 gallons in product recovery barrel. RW-2 13.42 13.88 0.46 15.50 Product measurements taken with recovery socks in place in RW-1 and RW-4. ' 9/11/02 RW-3 13.28 13.31 0.03 Approximately 0.5 gallons of product recovered,Approximately l.5 gallons of product were removed from RW4 using a disposable two-inch bailer.Both recovery socks were RW-4 12.55 14.00 1,45 1475 placed in RW-4.Set up without battery.23 gallons in product recovery barrel. ' 9/13/02 No product measurements taken.Skimmer pump battery replaced and hose repaired.Skimmer pump installed in RW-2;skimmer set for(3)3-minute cycles/day. RW-213.70 13.93 0.23 17.75 Approximately 2.25 gallons of product skimmed from RW-2.Absorbent sock in RW4 9/16/02 strained and replaced;0.25 gallons of product recovered.Skimmer pump left in RW-2; RW-4 12.78 13.41 0.63 15.00 skimmer set at(3)3-minute cycles/day.25.5 gallons in product recovery barrel. ' RW-2 13.81 14.14 0.33 19.50 N2 lank empty;detached and replaced with a new tank.Changed recovery socks in RW-4. After pun -13.81 -13.91 -0.10 Skimmer pump removed from RW-2 and recovery socks placed in RW-2.Approximately 101102/02 1.75 gallons of product were recovered from RW-2,Skimmer pump installed in RW-4, ' RW-3 13.5414.23 1.46 15.50 3.56 0.02 but inoperative.Approximately 0.50 gallons of product strained from RW-4.27.75 RW-4 12.77 1 gallons in product recovery barrel. RW-2 13.72 13.95 0.2319.55 Absorbent socks in RW-2 strained and replaced;approximately 0.05 gallons of product 10/4/02 recovered.Skimmer pump installed in RW-4 inoperative;insufficient water level to allow ' RW-4 12.90 14.32 142 15.50 pump to function.Pump requires-0.55 feel of water to function properly;water depth in RW-4 measured at 0.38 feet. 11/7/02 No product measurements taken.Approximately 0.5 gallons ofproduct were removed from RW-4 using a disposable two-inch hailer.Cumulative diesel removed from RW4 is approximately 16.00 gallons.Absorbent socks in RW-2 strained and replaced.Approximately 28.3 gallons in product recovery barrel. RW-1 1300 13.05 0.05 11/11/02 RW-2 13.77 19.55 Skimmer pump in RW-4 inoperative;insufficient waver/,-duct in well for pump to RW-3 13.54 13.82 0.28 function properly. RW4 13.02 14.19 1.17 16.00 ' RW-1 13.25 13.30 O.OS Bailed product from RW-3 and RW-4.Absorbent socks in RW-1 and RW-3 showed and 11/21/0] RW-213.88 13.89 0.01 19.55 replaced.Skimmer pump in RW-4 nod utilized due to low water depth.Product recovery RW-3 13.72 14.30 0.58 0.20' barrel measurement indicated approximately 29.5 gallons ofproductand accumulated RW4 12.92 15.26 2.34 17.0' water. 1 ' X:IPrcject\1000yrj11838 PLOF Diesel Umpl838RRepa Ia\1014\Table B.xls Page 3 of 30