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LEDDY PARK SOIL STOCKPILE DISPOSAL BURLINGTON, VERMONT

DAILY REPORT

Date: December 21, 2015 Days of Oversight: 5 Time On-Site: 06:15 Weather: Cloudy, breezy, light rain in afternoon~35-40 °F Time Off-Site: 17:00 Location: Gordon Paquette Ice Arena Parking Lot, 216 Leddy Park Road, Burlington, VT.

Personnel On Site City of Burlington Representatives: None

The Johnson Company (JCO) Representatives: Jeremy Matt

ENPRO: Representatives: Bob, Kyle, Brian, Scott (early morning)

VTDEC: Representatives: Hugo Martinez-Cazon (~10:00 & ~16:30)

Other: Representatives: None

Activity Log Description of Work:

1. Before the start of work, ENPRO replaced the orange plastic safety fencing used to demarcate the truck staging area. This fencing was removed last Friday (12/18/2015) to provide additional parking for an event at the Gordon Paquette arena scheduled for the following Saturday.

2. ENPRO loaded nineteen (19) trucks (four tri-axle trucks at approximately 20 tons/truck and 15 tractor-trailers at approximately 28 tons/truck) with soil from Stockpile A, Segment 3 and from Stockpile D. Stockpile A Segment 3 and Stockpile D were completely removed – the only remaining soils at the Site are Stockpile A, Segment 4. Based on the estimated tons/truck, the total soil tonnage shipped off-Site to date (12/15/2015 to present) is approximately 2,400 tons (500 tons to Clinton Country Landfill, NY and 1,900 tons to Waste USA, Coventry, VT). During loading, a wood frame covered with plastic sheeting was placed on the truck and used to direct soil spillage (if any) from the excavator bucket away from the truck-loading corridor. Keeping the truck loading corridor free of soil minimizes tracking. Jeremy Matt inspected the trucks to confirm that the tailgate latches were secure, that the trucks tires were not tracking soil from the pile, that the trucks were clean upon departing the site, that the loads were covered, and that the driver had the proper transport manifests. This information was recorded on the truck log sheet (see photographs of the truck logs below). Copies of the manifests were collected by Jeremy Matt. The pre-printed manifests did not have the Stockpile/Segment identifiers on them as required by the 12/16/2015 Casella approval for the Clinton County, NY landfill. JCO individually printed on each manifest the origin of the soil from within the pile (e.g. Stockpile A, Segment 3). The Stockpile D soils did not compromise a complete load; therefore the manifest indicated that the load contained both Stockpile A, Segment 3 soils and Stockpile D soils.

3. ENPRO used a small excavator to collect the Stockpile D soils and transport them to within reach of the large excavator, staged on Stockpile A, which was being used to load trucks. After relocating the contents of Stockpile D, the former ‘footprint’ of this stockpile was covered with poly sheeting pending a more thorough cleaning of the asphalt in this area.

4. To allow the trucks get close enough to the excavator to be loaded, ENPRO pulled soils back up into the pile. The area was swept free of as much Stockpile soil as possible using the power broom, but some soil remained on the asphalt. Therefore clean poly sheeting was placed over this area to prevent Stockpile soil from contacting the truck tires during loading.

5. Periodically throughout the day, ENPRO used the excavator bucket to scrape larger soil deposits and a power broom to sweep smaller deposits from the newly exposed asphalt surface beneath Segments 3 of Stockpile A and Stockpile D. The damp condition of the soil was effective in preventing dust generation during power sweeping. As with previous days, sweeping did not completely remove the soil from the asphalt (a thin veneer of visible soil remains on the parking lot surface). Therefore the area was covered with poly sheeting pending a more thorough cleaning. The weather will be monitored for impending cold conditions which could potentially prevent a more thorough cleaning.

6. At the end of the day, ENPRO placed new hay bales to replace bales which were destroyed during soil loading. 7. At the end of the day, ENPRO re-covered with poly sheeting the exposed ends of Stockpile A and all areas of asphalt

that had not yet been thoroughly cleaned. Sand bags and the excavator bucket were used to secure the plastic. No exposed soil was visible at the end of the day.

Discussion/Other Activities: 1. Hugo Martinez-Cazon (VTDEC) performed two Site visits (approximately 10:00 and 16:30) today. Jeremy Matt

discussed the following Site conditions with Hugo while onsite:

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a. Water which had pooled above the poly sheeting, which had not come in contact with Stockpile soil, was observed flowing across the parking lot. This water appeared clear and was the result of the rain that had occurred overnight. The presence of water on the poly was photo-documented (see below)

b. The functionality of the truck tire decontamination pad was noted, specifically the lack of water migration from the pad. The condition of the pad was photo-documented (see below)

c. The forecasted rain for tomorrow (12/22/15) was discussed, and the need to prevent water which had come in contact with Stockpile soil from escaping the stockpile area

d. The test area which ENPRO had pressure washed on Friday (12/18/15). Hugo agreed that the pressure washing appeared to be effective but that a second “pass” should be conducted to complete cleaning of the asphalt.

e. The presence of imported sand from sandbags on the surface of the parking lot. The sand bags used to hold the poly sheeting in place are occasionally run over by the trucks, releasing sand (see the photo-documentation below). ENPRO swept this clean sand into the stockpile and made effort not to have sand bags fall in the path of truck traffic.

Problems/Deviations/Resolution:

Dust and Soil Migration Mitigation: 1. No visible soil dust or soil migration was observed throughout the day.

Air Monitoring: 1. Prior to soil disturbance, Jeremy Matt set up three DustTrack 8520 dust monitors at points adjacent to the work area.

The alarm limits of these units were set to 0.150 mg/m3 (National Ambient Air Quality Standards for Particle Pollution, PM10 as referred to as the EPA’s Air Quality Index). This standard is a time-weighted average over a period of 24-hours, meaning that both the peak concentrations and the duration of those peaks are considered when determining if an exceedance has occurred. This means that instantaneous readings in excess of the standard are acceptable provided the average concentration is below the standard. Two meters were placed in a generally downwind location and one was placed in an upwind location. The locations were selected based on the wind direction reported by the Weather Channel android application. The operation of the monitors was checked periodically throughout the day during soil disturbance activities. No readings in excess of the 0.150 mg/m3 alarm limit were recorded during these checks. At the end of the day, the log files were downloaded and reviewed. The average dust concentrations reported by all three meters were less than 0.019 mg/m3. The peak results from each of the three dust meters were also below the 0.150 mg/m3 threshold.

Public Interest: 1. Maggie Standley (an artist at Wingspan Studios) visited the Site and expressed interest in the soil removal effort.

She took some photographs and suggested that the excavator on the soil stockpile may be an interesting subject for a painting.

Safety Concerns: None

C:\Users\JEM.johnsonco\Desktop\Work\Leddy Park\Soil Disposal\Daily Reports\2015-12-21 Leddy Park Soil Stockpile Disposal Daily Report.docx

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PHOTO DOCUMENTATION

Photo 1: Preparing to load a truck. Note the presence of poly sheeting to protect the truck tires.

Photo 2: Overview of the stockpile loading area looking east. Photo was taken during a lull in truck loading – the small excavator is being delivered to the Site to transport Stockpile D to within reach of the large excavator.

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Photo 3: Clean water on poly sheeting (typical)

Photo 4: The condition of the tire decontamination pad. Note no water is escaping from the pad.

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Photo 5: Transporting the Stockpile D soils to within reach of the large excavator

Photo 6: The condition of the poly sheeting at approximately 14:30. Note the sand bag which was run over by a truck and flattened.

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Photo 7: The stockpile condition at the end of the day

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Photo 8: Photograph of the truck log sheet for 12/21/15