1.0 EXECUTIVE SUMMARY 0 The 2019 ?rst quarter sampling event was conducted at Westmoreland Sanitary Land?ll (WSLF) in Rostraver, Township, in March 2019. The groundwater wells, leachate, and leak detection zones were sampled on March 7 and 8, 2019 and an attempt was made to sample the surface water locations on March 29, 2019. However, the surface water locations were dry and were not sampled. All samples were collected by Geochemical Testing. All groundwater samples were analyzed for Department of Environmental Protection (PADEP) Form 19 parameters. Based on the analyses of the groundwater quality results from the March 2019 sampling event, the groundwater at Westmoreland Sanitary Land?ll has not been impacted by a release of leachate. The leachate and leak detection zone were sampled for PADEP Form 50 parameters. During the ?rst quarter of 20 1 9 the flow in the leak detection zone exceeded 100 gallons/acre/day for both and Civil Design Solutions will be submitting a noti?cation of the . exceedance and a plan to investigate the source of increased detection zone ?ow to solid waste. Comparisons were made between the inorganic parameters detected in groundwater samples and the drinking water maximum contaminant levels (MCLs). No drinking water MCLs were exceeded for any of the inorganic constituents analyzed. ?It should be noted that groundwater at WSLF has been shown to be sensitive to turbidity based?on historic comparisons of total and dissolved metals results. Therefore, in order to attempt to collect samples that better represent the groundwater quality, it is proposed that the yield characteristics of the groundwater monitoring wells be evaluated to determine the best purging and sampling procedures. This may include yield testing and potential rehabilitation of wells, as needed. During the 2019 ?rst quarter sampling event, no volatile organic compounds were detected above established reporting limits in any of the groundwater samples collected and the groundwater quality results are consistent with historical results, except for two parameters at W-3RD which were elevated due to high turbidity. During the 2019 ?rst quarter event, turbidity Eagon Associates, Inc. l~?l April 29, 2019 was high (314 NTU) at the time of sample collection which resulted in elevated concentrations for . ?uoride and iron. Eagon Associates, Inc. 1-2 April 29, 2019 2.0 INTRODUCTION 2.1 Scope and Purpose This report summarizes the results of the 2019 ?rst quarter groundwater monitoring activities at the WSLF. The ?rst quarter groundwater, leachate, and leak detection zone sampling was conducted on March 7 and 8, 2019 by Geochemical Testing the ?rst quarter surface water sampling was conducted on March 29, 2019 and the ?rst quarter report was prepared by Eagon Associates, Inc. (Eagon), to meet the requirements of the PADEP and municipal waste land?ll Permit No. 100277. The Groundwater Monitoring Program at WSLF incorporates permanent monitoring elements to provide environmental protection during and after land?ll development. All ?eld work, sampling methodologies, data evaluation, data and chemical analyses were conducted in accordance with the approved site permits. 2.2 Site Description and Background a The WSLF is located in the southwestern portion of Westmoreland County, approximately 1A-mile north of Interstate 70 and east of the Monongahela River in Rostraver Township (Figure 1). The land?ll is a double-lined land?ll with an older tmlinedwdisposal area. The older unlined disposal area is approximately 20 acres and it has been capped. The double?lined land?ll consists of Phases 1, II, and 111, under permit number 100277 issued by PADEP. Cells 84/ S3 through 1B have been constructed and were authorized by the July 27, 2004 permit modi?cation. Waste diSposal operations were initiated in Cell 84/ S3 during the fourth quarter of 2006 and Cells 81A, and 81B have been constructed to date. Eagon Associates, Inc. 2-1 April 29, 2019 2540-FM-BWMD158 Rev. 1012010 COMMONWEALTH OF Date Prepared/Revised pen a 03/25/2019 FORM 50 Date Received MUNICIPAL WASTE LANDFILL LEACHATE ANALYSES This form must be fully and accurately completed. All required information must be typed or legibly printed in the spaces provided. If additionai space is necessary, identify each attached sheet as Form 50, reference the item number and identify the date prepared. The ?date prepared/revised" on any attached sheets needs to match the "date prepared/revised? on this page. General References: Section 273.255(d) and and 273.276(a) Fed I t? Subtitle 258 54 and A endix to-Part-258 Applicant/permittee Westmoreiand Waste LLC Site Name Westmoreland Waste LLC Facility ID (as issued by DEP) 100277 Facility Name: Westmoreland Waste LLC Sampling Point Identification (LEACHATE) Westmoreland Rostraver Twp. Location: County Municipality: 5! Sampling Point: Latitude: . Longitude: ,3 Sampling Method: Pumped Bailed Grab Sample Field Filtered (must be 0.45 micron)? Yes No 03/08/19 Ron Benford Sample Collection Time: 11:55 Sample Date (mm/dd/yy) Sample Collector?s Name: Sample Collector?s Affiliation: Geochemical Testing Laboratory(ies) Performing Analysis: Geochemical Testing Laboratory Certification Number(s): 56'00306 G1903473-001 03/20/2019 Lab Sample Number(s): Final Lab Analysis Completion Date: Were Any Holding Times Exceeded? Yes No If Yes, please explain in comments field. Name/Affiliation of Person Who Filled Out Form GeOChemlcal TeStmg Comments: Oil like Sheen Sediment .. Strong odor - Brown I Rev. 1012010 COMMONWEALTH OF DEPARTMENT OF ENVIRONMENTAL PROTECTION BUREAU OF WASTE MANAGEMENT FORM 50 Monitoring Point QUARTERLY MUNICIPAL WASTE Sample Date 03/08/19 LANDFILL ID. No. 100277 LEACHATE ANALYSES For new facilities and cells as well as existing facilities which were permitted and which received waste after April 9, 1988, discharge flow volume from leachate collection shalt be measured daily Discharge flow volume from the detection zone shall be estimated weekly Form 50 is due quarterly after the ?ow of leach ate from the collection system has started. For facilities or cells which have received no waste since April 9, 1988, detection zone monitoring will meet permit/closure requirements. FLOW FACTOR LEACHATE DISCHARGE DETECTION ZONE DISCHARGE Volume (average gpd) 63032 Area Drained (acres) 44.6 Ratio (gallons/acre/day) 1413.3 Once leachate flow begins from a leachate collection system, leachate discharge will be analyzed quarterly for all analytes listed below. In the leachate detection zone, any ?uid found in any detection zone monitoring point must be sampled during the initial four quarters for the leachate indicator parameters (designated by below) to establish a baseline fiuid composition. Thereafter, any ?uid detected in each monitoring point in the leachate detection zone must be sampled annually for the ieachate indicator parameters. Quarterly sampling of the ?uid in any detection zone monitoring point for leachate indicator parameters is required only when the quarterly flow at that monitoring point exceeds 10 gallons per acre per day (weekly average for the quarter) for the cell(s) served by that monitoring point. If the indicator analytes confirm ieachate contamination in the detection zone, the fluid will be analyzed initially within 30 days and thereafter annually for all anaiytes listed below. When (where established) of any detection zone analytes on this form are exceeded, annual groundwater monitoring must include the Subtitle detection zone add?on list anaiytes found on Form 19. . a t9 DETECTION ANALYSIS ANALYTE LEACHATE ZONE METHOD (mg/I unless otherwise indicated) DISCHARGET NUMBER Alkalinity, Totai 1780 10671 AmmoniadNitrogen 399 EPA 350.1 Bicarbonate (as Cacog) 1770 SM 4500-002 Calcium, Total .195 EPA 200.7 Chemical Oxygen Demand 21.00 HACH 8000 Chloride (CI) 2140 ., EPA 300.0 Magnesium, Total 0 135 EPA 200.7 pH, Field, (Standard Units) 7.60 SM 4500 pH, Laboratory, (Standard Units) [3 7.57 SM 10.* Potassium, Total 247 EPA 200.7 11.* Specific Conductance, Field (micromhos/cm) 9330 EPA 120.1 12.* Specific Conductance, Laboratory (micromhos/cm) 10800 EPA 120.1 13.* Sodium, Total 1320 EPA 200.7 14.* Sulfate, Total 132 EPA 300.0 15.* Total Organic Carbon (TOC) 189 SM 5310 16. Ftuoride 1.0 EPA 300.0 17. Iron, Totat 4.54 EPA 200.7 18. Manganese, Totai l0 1.04 EPA 200.7 19. Nitrate-Nitrogen l3 2.51 EPA 353.2 . Please indicate detection limit if anaiyte is not detected. 2 2540-FM-BWM0158 Rev. 1012010 Monitoring Point N0, NEH-1 (LEACHAT Please indicate detection limit if analyte is not detected. -3- . FORM 50 Sample Date 03/08/19 ID. No. 100277 DETECTION ANALYSIS LEACHATE ZONE METHOD ANALYTE DISCHARGET DISCHARGET NUMBER 20. Phenolics, Total (mg/l) 0.22 EPA 420.4 21. Total Dissolved Solids (mg/l) 5000 SM 2540 22. Tritium (pCi/L)# EPA 906.0 23. Turbidity (mg/l) 95.0 EPA 180.1 24. Antimony, Total (pg/i) 100 EPA 200.7 25. Arsenic, Total (pg/l) 50 EPA 200.7 26. Barium, Total (pg/l) 2000 EPA 200.7 27. Beryllium, Total (pg/l) 4 EPA 200.7 28. Cadmium, Total (pg/I) 5 EPA 200.7 29. Chromium, Total (pg/l) 40 EPA 200.7 30. Cobalt, Total (pg/E) 20 EPA 200.7 31. Copper, Total (pg/l) 10 EPA 200.7 32. Lead, Total (pg/l) 20 EPA 200.7 33. Mercury, Total (pg/l) 0.20 SM 3112 34. Nickel, Total (pg/l) 80 EPA 200.7 35. Selenium, Total (pg/l) 20 EPA 200.7 . 36. Silver, Total (pg/t) 10 EPA 200.7 37. Thallium, Total (pg/l) 6204 EPA 200.7 38. Vanadium, Total (pg/1) 10 EPA 200.7 39. Zinc, Total (pg/I) 70 EPA 200.7 40. Acetone (pg/l) 100 EPA 8260 41. Acrylonitrile (pg/l) 5.0 EPA 8260 42. Benzene (pg/I) . 5.0 EPA 8260 43. Bromochloromethane (pg/I)