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2020-09-15 Applicant Response to Mr. Vondemkemp N Delivering Solutions Improving Lives September 15, 2020 Mr.Joseph Dodson City of Meridian Community Development 33 E. Broadway Ave Meridian, Idaho 83642 sent via email RE: Jocelyn Park Subdivision— Response to Christopher Vondemkemp Email Dated 9/14/2020 Dear Mr. Dodson, I am writing in response to Mr. Vondemkemp's email dated 9/14/2020 regarding the issues and concerns he raised about the supposed "freshwater ponds" on our site. I have done some additional research on this matter and both myself and Matt Munger spoke with the Army Corps of Engineers this afternoon whereby we confirmed that these maps are not always accurate, sometimes showing features that don't exist and vice versa. Also in response, and to clarify the record, I am forwarding the following information for the City Council's consideration: 1. Said "freshwater pond" or wetlands is an old lined sewage lagoon that was decommissioned in 2014 and prior to the Applicant's ownership of the property; 2. I've attached a copy of the "Final Decommissioning Report for the Meridian Heights Sewage Lagoon" prepared by Keller Associates in October 2014 which discusses the history of the site and subsequent decommissioning; 3. According to the aforementioned report, "The aeration lagoon was constructed with the original phase of the Meridian Heights Subdivision during the early 1970s and has acted as the treatment cell for the subdivision's wastewater since construction. During the mid-1990s, the larger lagoon located north of the treatment lagoon was constructed and has been used primarily as winter storage prior to land application of the effluent.At that time, the aeration lagoon was modified to include a synthetic liner on the bottom and sides of the lagoon"—see page 2; 4. The report further states, "In February of 2014, the connection of the District's wastewater collections system to the City's collection system was completed. During the connection to the City's system, the discharge line to the aeration lagoon was grouted shut, preventing future flows into the lagoon system. On February 19, 2014, the District, in coniunction with the City,started draining the storage lagoon into the City's collection system. Pumping continued for approximately two weeks until the storage lagoon level dropped to the level of the lagoon outlet. As a result, an agreement was reached between all 690 S. Industry Way, Ste 10 • Meridian, ID 83642 • 208.342.5400 • F 208.342.5353 • www.NV5.com parties involved in the Agreement that there would be no land application during 2014. During the final two weeks of March, a hose was suspended on the surface of the aeration lagoon for the purpose of pumping the liquids from the lagoon to the City's collection system. Water was pumped for approximately two weeks while the City's sewer treatment plant staff oversaw the percentage of solids in the liquid that was pumped to the City. The lagoon was drained until the hose could not be suspended high enough over the solids in the lagoon without sucking air into the pump intake. At this point, it was agreed that the transfer of all liquids to the City's treatment system had been completed. The remaining liquid in both lagoons was left to evaporate."—see page 3; 5. Upon further research of the map provided by Mr.Vondemkemp,the map's origin on the National Wetlands Inventory the site states: "This 1.32 acre Freshwater Pond habitat is classified as a PUBHh. The wetlands and deepwater habitats in this area were photo interpreted using 1:58,000 scale, color infrared imagery from 1981." (https.11www.fws.gov/wetlands/datalMapper.html). In reviewing of all of the information,the historical timeline of various site development actions and position of the supposed PUBHh waterbody, the antiquated infrared imagery from 1981 was actually picking up the surface area of the sewage lagoon that had been constructed in the 1970's and not any sort of wetland area. I have included historical Google Earth images showing the development of the area between 1992 to 2018 for your reference as well. We would also like to note and clarify for the record that the Applicant, as shown on our site plan, is leaving the drainage pond on the very south end of the property untouched. Although this pond is not shown on the National Wetlands map,this manmade pond constructed sometime in the early 1990's will remain in place as an amenity to the project and surrounding area. Sincerely, f3o v /vit, Lajfo-w Bonnie Layton Sr. Planner enclosures Page 2 of 2 October 2014 AI t� F W,re .77 VIA ,p v t • 1 sy. ' w - Yrr} 3� ' 3` Y Meridian Heights �..,.� f3 �,I � a!Y 1��+�57, WtJ�• 'Y` �f p _, i N� �'"'����ih���„'��'°�t Sewage Lagoon October 2014 Meridian Heights Meridian Heights Water & Sewer District Sewage Lagoon Final Decommissioning Report oru►L �G%STEq�� Q ► O � q /Iq n 11621 '9y rE OF qN V. M0� K E L L E R associates Keller Associates 131 SW 51h Avenue , Suite A Meridian , Idaho 83642 214019-003/5/Rpts/14-378 Signed by : Ryan Morgan , P . E . Project Manager October 2014 FINAL DECOMMISSIONING REPORT KELLER associates TABLE OF CONTENTS 1. Project Background ......................................................................1 1.1 Location ....................................................................................... 1 1.2 Historical Background...................................................................2 1.3 Facility Information .......................................................................3 2. Closure and Decommissioning....................................................3 2.1 Lagoon Drainage and Sludge Drying............................................ 3 2.2 Biosolids Removal and Disposal ..................................................4 2.3 Soils Removal and Disposal......................................................... 5 2.4 Liner Removal and Disposal......................................................... 5 2.5 Sampling ......................................................................................6 2.6 Results......................................................................................... 7 2.7 Final Closure.............................................................................. 10 2.8 Final Costs ................................................................................. 10 3. Project Oversight.........................................................................11 3.1 District Board.............................................................................. 11 3.2 District Employees...................................................................... 11 3.3 Contractor .................................................................................. 11 3.4 Testing ....................................................................................... 12 3.5 Engineer of Record .................................................................... 12 FIGURE Figure 1 Meridian Heights Water and Sewer District Water System Map T- Table 1 Soil and Sludge Remediation Action Target Levels Table 2 Paul Construction's Bid Tabulation Table 3 Paul Construction's Final Contract Price APPENDICIES Appendix A—Vicinity Map Appendix B — Sample Locations Appendix C — Sample Results Appendix D — Photos 214019-003/5/Rpts/14-378 MERIDIAN HEIGHTS WATER & SEWER DISTRICT October 201 FINAL DECOMMISSIONING REPORT KE L LE R associates 1 . PROJECT BACKGROUND 1.1 Location The Meridian Heights Water and Sewer District (District) is located on the south side of Victory Road, between Stoddard Avenue and Meridian Road, adjacent to the City of Meridian (City), Idaho. The District water and sewer system consists of the Meridian Heights and Kentucky Ridge Subdivisions, a wastewater treatment plant (WWTP), and three Public Drinking Water System (PDWS) wells. The subdivisions are separated by the WWTP and a private parcel. Water and wastewater mains connect the subdivisions across the private parcel through utility easements. The boundary of the District operation and the locations of the primary District features are shown in Figure 1. A larger, more detailed exhibit is included as Appendix A of this report. Figure 1 : Meridian Heights Water and Sewer District Water System Map - - a MAIN EASEMENT A .w KENTUCKY RIDGE SUBDIVISION n+ T _ I � LEGEND `�•tr . - o WATER MAIN r, '' iU) WATER DISTRICT BOUNDARY EASEMENT _ MERIDIAN HEIGHTS SUBDIVISION i EXISTING WATER MAIN IN � SUBDIVISIONS WASTEWATER, `' . _ REUSE PERPETUAL ,EASEMENT 214019-003/5/Rpts/14-378 MERIDIAN HEIGHTS WATER & SEWER DISTRICT '••- October 201 FINAL DECOMMISSIONING REPORT 10 KELLER associates 1.2 Historical Background The District, formerly the Meridian Heights Water and Sewer Association (Association), previously maintained a lagoon-based WWTP on property owned by the District. The WWTP consisted of two sewer lagoons: one treatment/aeration lagoon and one storage lagoon. The lagoons are located between the two subdivisions along the south side of Victory Road. Treated effluent from the storage lagoon was transferred to a land application Hydraulic Management Units (HMUs), as specified in the 2009 land application permit issued by the Idaho Department of Environmental Quality (IDEA). The HMUs were located to the southeast of the lagoons on West Harris Street. The District did not own the HMUs property, and operation on the HMUs was allowed through a perpetual wastewater easement, which was recently released by the District. The aeration lagoon was constructed with the original phase of the Meridian Heights Subdivision during the early 1970s and has acted as the treatment cell for the subdivision's wastewater since construction. During the mid-1990s, the larger lagoon located north of the treatment lagoon was constructed and has been used primarily as winter storage prior to land application of the effluent. At that time, the aeration lagoon was modified to include a synthetic liner on the bottom and sides of the lagoon. During the last decade, the City wastewater services were extended to Victory Road from Bear Creek Subdivision, which is located due north of the District's WWTP. The availability of City wastewater services within the vicinity of the WWTP was brought to the attention of the IDEA, which led IDEA to issue a statement on September 9, 2008, stating that the land application permit would not be renewed because City wastewater services were considered available from Victory Road. The Association approached the City to negotiate for the provision of wastewater service through annexation or contractual agreement. The City subsequently determined that an application for annexation must be prepared before further consideration of an agreement was discussed. The District filed an application for annexation with the City on December 30, 2008. The City reviewed the application and requested additional reports and documents in order to proceed with their review. During the review process, the City requested that the Association seek to form a water and sewer district, which could negotiate with the City as a quasi-governmental agency during the annexation process. The Association proceeded as requested and formally became the Meridian Heights Water and Sewer District on June 16, 2009, by order of the Fourth Judicial District Court of Idaho. In 2009, the City denied annexation of the District customers, and the District renewed its land application permit. During the summer of 2012, the District, at the request of a third party, again approached the City to discuss annexation of its customers and property. In September 2013, a Three-Party Agreement (Agreement) was reached between the City, the District, and Mr. Lee Centers. The signed Agreement required the City to provide services to District costumers by annexing them into City limits. As part of the Agreement, the District agreed to send all wastewater to the City of Meridian's wastewater treatment plant and decommission the District's wastewater treatment lagoons. 214019-003/5/Rpts/14-378 MERIDIAN HEIGHTS WATER & SEWER DISTRICT •" October 201 FINAL DECOMMISSIONING REPORT 10 KELLER associates 1.3 Facility Information The aeration lagoon is a 1.04-acre lagoon with three feet of freeboard when full. It was constructed during 1970/1971 and placed into operation in 1971. The lagoon has 3:1 side slopes and was constructed with 18 inches of backfill over a synthetic liner. The second lagoon was approved in 1993 and placed into operation during that same year. It is approximately 4 acres in size at the high-water mark. The bottom of the lagoon was constructed of 12 inches of sandy cobbled soil over 6 inches of sandy soil on a synthetic liner. This lagoon was used as a storage lagoon during the non-growing season, so the water level varied throughout the year. When the original lagoon was constructed, it was maintained and operated by the Association. The Association also took over the maintenance and operation of the second lagoon when it was constructed and maintained both lagoons until all assets were transferred at the creation of the District. 2. CLOSURE AND DECOMMISSIONING 2.1 Lagoon Drainage and Sludge Drying In February of 2014, the connection of the District's wastewater collections system to the City's collection system was completed. During the connection to the City's system, the discharge line to the aeration lagoon was grouted shut, preventing future flows into the lagoon system. On February 19, 2014, the District, in conjunction with the City, started draining the storage lagoon into the City's collection system. Pumping continued for approximately two weeks until the storage lagoon level dropped to the level of the lagoon outlet. As a result, an agreement was reached between all parties involved in the Agreement that there would be no land application during 2014. During the final two weeks of March, a hose was suspended on the surface of the aeration lagoon for the purpose of pumping the liquids from the lagoon to the City's collection system. Water was pumped for approximately two weeks while the City's sewer treatment plant staff oversaw the percentage of solids in the liquid that was pumped to the City. The lagoon was drained until the hose could not be suspended high enough over the solids in the lagoon without sucking air into the pump intake. At this point, it was agreed that the transfer of all liquids to the City's treatment system had been completed. The remaining liquid in both lagoons was left to evaporate. During April and May 2014, the lagoons were left alone to allow the remaining water to evaporate and allow the solids to dry. By mid-May, only a small puddle of water remained in the north portion of the storage lagoon. The biosolids in the rest of the lagoon were at various stages of drying. The water level in the aeration lagoon continued to drop as the liquid evaporated; soon the edges of the lagoon began to dry. By mid-June, the biosolids in the storage lagoon were dry enough for testing and ready for removal and transport. For more information on the biosolids testing, please see Sections 2.5 and 2.6 of this report. 214019-003/5/Rpts/14-378 MERIDIAN HEIGHTS WATER & SEWER DISTRICT •" October 201 FINAL DECOMMISSIONING REPORT 0 KELLER `�/ associates On August 12, 2014, the contractor mobilized to the site. On August 13 and 14, the biosolids were moved to one side of the aeration lagoon and the bottom liner was removed. The biosolids still appeared to be too damp to haul to the landfill and were subsequently spread across the bottom of the lagoon. With the liner removed from the bottom of the lagoon, the biosolids were ready to be removed by August 26, and the contractor began to stockpile them in the northeast corner of the aeration lagoon. On Sunday, August 17, 2014, the drainage ditch that runs along the east property line overtopped its banks and drained into the southwest corner of the storage lagoon. The biosolids in the area were currently windrowed, and as a result the moisture was contained to only three rows of solids. These rows were left to dry, while the contractor stockpiled and started removing the remainder of the biosolids. By August 20, the three rows of biosolids were dry enough to mix with the rest of the biosolids, and were therefore stockpiled with the remaining biosolids and removed from the site. 2.2 Biosolids Removal and Disposal On August 14, 2014, the contractor began windrowing the biosolids in the storage lagoon. Because of the moisture content and consistency, the biosolids separated from the underlying soil in small cubes with negligible solids remaining behind. They were then pushed into stockpiles on the lagoon bottom. A loader was used to load dump trucks in the bottom of the lagoon. Trucks were typically loaded with between 20 and 35 tons of biosolids. All trucks used to transport biosolids were in a state of good repair, with the container portion free from large holes or extensive rust. Biosolids were so dry at the time of loading and transport that they were sprayed with water to prevent fugitive dust prior to leaving the site. All trucks were equipped with motorized roller tarps and were covered prior to exiting the bottom of the storage lagoon. (For additional information on truck requirements, please refer to the Trucking Standard Operating Procedure (SOP) found in the appendices of the Quality Assurance Project Plan (QAPP) prepared by Keller Associates in March 2014). Trucks then exited the property via a temporary access road constructed on the adjacent property to the west. This access road gave access to the property directly from Victory Road instead of routing the trucks through the Meridian Heights neighborhood. From Victory Road, the trucks stayed on major roadways until they reach the Ada County Hidden Hollow Landfill. Biosolids from the storage lagoon were all removed by August 25. The biosolids in the aeration lagoon, after they had completed drying, were again stockpiled in the northwest corner of the lagoon. Stockpiling was accomplished by pushing the biosolids with a crawler/dozer. The bottom of the lagoon surface was heavily compacted after over 20 years of being located under the lagoons. This allowed the contractor to push the biosolids across the surface as if pushing solids across a concrete surface. Because the aeration lagoon is smaller than the storage lagoon, an access ramp could not be constructed into the lagoon. Trucks were loaded via an excavator stationed at the top of the lagoon. Trucks would then circle the top of the lagoon and exit to Victory Road. The moisture content of the biosolids was slightly greater than that of the storage lagoon; therefore, they were not sprayed with water prior 214019-003/5/Rpts/14-378 MERIDIAN HEIGHTS WATER & SEWER DISTRICT '••" ' October 201 FINAL DECOMMISSIONING REPORT « KELLER associates being covered. However, even though the moisture content was higher, the consistency of the biosolids was not as dense, resulting in lighter loads being hauled to the landfill. 2.3 Soils Removal and Disposal After the biosolids were removed from the storage lagoon, the soil zero to six inches below the biosolids was tested. Testing provided results sufficient for the soils to be hauled to a local gravel pit and used as backfill material in the excavated pits. For specific testing results, refer to Section 2.6 of this report. With favorable results, the top six inches of soil were stockpiled into different locations on the bottom of the lagoon. Stockpiling was accomplished by using a crawler and pushing the top four to six inches of soil across the lagoon bottom. After the soil was pushed to one side of the lagoon, it was then pushed into stockpiles. Because of the quantity of dirt and large area, the work of removing the soils was done in sections. After the first stockpile was ready, the soil was loaded into dump trucks by a front-end loader and hauled offsite. After being covered, trucks would exit the lagoon and leave the property via the Victory Road access and head west to the Busy Bee Sand and Gravel Pit located on South Black Cat Road. Busy Bee used the soils as backfill for reclamation of one of their gravel pits. Per contractor discussions with Busy Bee, the soil from the lagoon project was going to be used as the bottom layers of backfill within the reclaimed gravel pit. After the top layer of soil was removed from the surface of the lagoon bottom, the remaining soil above the liner were tested. Test results indicated that the remaining soil could be left in place. Test results of soils under the lagoon liner also showed that no soil removal was required. As a result, no additional soils were removed from the storage lagoon. As the biosolids were being stockpiled in the aeration lagoon, the bottom liner came up with the solids. It was quickly discovered that there was no soil layer between the biosolids and the lagoon liner as expected. The original anticipation was that the top four to six inches of soil above the liner would be removed to ensure removal of all biosolids. With no soil above the liner and the hard pan layer below the liner, separation of the biosolids from the soils were both easy to complete and confirm, no removal of this top layer of soil was required. Testing of soils under the liner showed results below the predetermined Residential Action Target Levels (RATLs); see Table 1 (Section 2.6) of this report for additional information. As a result, no soils were removed from the aeration lagoon. 2.4 Liner Removal and Disposal After the top layer of soil was removed from the storage lagoon bottom, the contractor attempted to push the remaining eight to twelve inches of soil off the liner. In the end, a grader was used to scrape the soils from the bottom of the lagoon. As the contractor continued to move the soils, the bottom liner clung to the bottom soil layer and balled up with the soils. The liner was separated from the soil utilizing the bucket on the excavator 214019-003/5/Rpts/14-378 MERIDIAN HEIGHTS WATER & SEWER DISTRICT '••" October 201 FINAL DECOMMISSIONING REPORT KELLER associates and backhoe clamshell. It was then stored within the confines of the lagoon until ready to be hauled to the landfill. The liner covering the embankment of the lagoon was thicker and more brittle than the bottom liner of the lagoon. As a result, the liner broke into pieces when the contractor tried to remove it from the embankment. The soil above the liner was subsequently pushed to the bottom of the lagoon, and construction workers walked the site behind the crawler removing pieces of liner by hand as they were exposed. Any pieces too large to be removed by hand were picked up using the clamshell on the backhoe. After the embankment liner was removed or scraped to the bottom, a backhoe was used to dig trenches to remove the key of the liner above the top of the embankment. The liner key was removed from two-thirds of the perimeter of the lagoon. The remaining one-third of the perimeter is located adjacent to the Ridenbaugh Canal. The top of the lagoon embankment is located within the canal right-of-way outside the fence surrounding the lagoon property. This liner is located at the top of the lagoon embankment and never came into contact with any wastewater. After discussing the situation with both the Nampa Meridian Irrigation District and IDEA, it was decided that excavation of the canal embankment may weaken the canal so the liner would be removed to the fence line, but that no excavation of liner would be required within the canal right-of-way. It is anticipated that no future development will occur within the canal right of way. As indicated in Section 2.2, the liner on the bottom of the aeration lagoon came loose from the bottom of the lagoon with the biosolids. The bottom liner was separated from the biosolids using the excavator teeth to catch the liner and remove it. It was then balled up and piled on the north embankment of the lagoon adjacent to the biosolids stockpile. Like the embankment liner in the storage lagoon, the embankment liner of the aeration lagoon was brittle, and most of it was removed by hand after the soil above the liner was scraped of the top. Liner from both lagoons was loaded into dump trucks and taken to the Hidden Hollow Landfill. 2.5 Sampling In mid-June, samples were collected from biosolids in the storage lagoon. A Toxicity Characteristic Leaching Procedure (TCLP) Test Method 1311 was conducted for leaching potential. Later, at the request of the Hidden Hollow Landfill, a Paint Filter Test was also run on the biosolids. By early August, biosolids in the aeration lagoon were ready for sampling, and samples were collected. The Paint Filter Test and TCLP were run on samples from the aeration lagoon. Samples were collected from five different locations in each lagoon in accordance with the approved Decommissioning Plan dated May 12, 2014. Sample locations can be found in Appendix B of this report. The samples were then made into one composite sample, and tests were run on that sample. All samples were collected per the SOP found in the QAPP for the Decommissioning Plan; sample results can be found in the Section 2.6 of this report. 214019-003/5/Rpts/14-378 MERIDIAN HEIGHTS WATER & SEWER DISTRICT '••" • October 201 FINAL DECOMMISSIONING REPORT 10 KELLER associates On August 14, after the biosolids were stockpiled in the storage lagoon, composite samples were collected from the soils at zero to two inches and two to four inches. Heavy metals, fecal coliform, total solids, and volatile solids tests were run on the composite sample. Also on August 14, after the liner was removed from the aeration lagoon, samples were collected at zero to two inches and two to four inches below the liner. On August 22, after the top six inches of soil had been stripped from the storage lagoon, additional composite samples were collected at zero to six inches and six inches to liner (average of nine inches). Again, five samples were collected per the sample location appendix, and results can be found in the following section. A final set of soil samples was taken from below the storage lagoon liner on August 29. Samples were taken at approximately the same locations, at a depth of zero to six inches. At the request of IDEA, on August 27 a trench was excavated in the bottom of the aeration lagoon. IDEQ representatives were onsite to observe the excavation for educational purposes. The trench was excavated using a one-cubic-yard, three-foot- wide bucket on the end of a backhoe. The ground below the liner was heavily compacted from years of water storage in the lagoon. The trench was excavated to a depth of approximately 54 inches. Observation of the vertical trench walls showed soil stain to a depth of 18 to 24 inches below the lagoon liner. Soils below 24 inches appeared moist but had no discoloration or staining. Observation of the trench walls two days later showed the soils' moisture content had changed significantly, but the staining was still visible. The samples below both lagoon liner were tested for volatile solids. These test results were done to estimate the amount of organic solids found in the soils below the liners. Test results should volatile solids to be less than three percent under the aeration lagoon and less than two percent in the storage lagoon. 2.6 Results Testing was performed on samples collected in the sections above. At the request of the Hidden Hollow Landfill, TCLP and Paint Filter Tests were performed on all material that was to be removed from the site. TCLP tests show the mobility of heavy metals in solids and liquids. Tests were done to determine the migratory potential of the metals and potential contamination of properties below the landfill. All TCLP results for the biosolids came back below the EPA Method Detection Limit (MDLs). A copy of all test results can be found in Appendix C. Paint Filter Tests are used to determine the presence of free liquids in the sample. The Paint Filter Test for biosolids in both the aeration and storage lagoons showed no free liquids present. Test results were sent to the landfill prior to hauling the biosolids. As a result of these tests, the landfill agreed to accept all material from the lagoons. The same tests were done for the top six inches of soils expected to be hauled to the Busy Bee gravel pit. Test results of these soils showed none detect migratory limits for all tested metals. (These results can be found in Appendix C and are labeled as Big Pond 2" and Big Pond 4".) As a result, Busy Bee accepted the soils. 214019-003/5/Rpts/14-378 MERIDIAN HEIGHTS WATER & SEWER DISTRICT '••" OctobMA er FINAL DECOMMISSIONING REPORT KELLER associates Heavy Metals Test 503 and fecal coliform test were run on all material expected to remain in place. All soil samples were compared to the Residential Screening Levels (RSLs) established in the Decommissioning Plan. A summary of the test results is shown in Table 1 on the following page. Test results for all samples were within the parameters established in the IDEQ- approved Sewage Lagoon Decommissioning Plan for the District wastewater lagoons, except for two samples of arsenic and one sample of fecal coliform. The two composite samples of soils to remain in place and collected above the storage lagoon liner showed levels of arsenic above the established RATL of 5.5 mg/kg. These results were 7.9 mg/kg for the zero- to six-inch sample, and 6.6 for the six-inch to liner sample. In comparing these levels to the background levels of the adjacent property, it becomes apparent that these arsenic levels are naturally occurring, especially considering the arsenic levels of the biosolids in the lagoon were only at 3.4 mg/kg and 3.3 mg/kg for samples taken. The question then becomes, is it acceptable to leave the soils in place with these arsenic levels? While Idaho does not have any specific regulations for arsenic level in soils some of its bordering states do. Washington has done several studies on naturally-occurring arsenic and has determined the state average to be 7 mg/kg. This average is even higher at 9 mg/kg for the Spokane Basin located in northeast Washington. As a result of these studies, the Washington Department of Ecology has set cleanup levels at 20 mg/kg. Montana has also done studies of naturally-occurring arsenic and has found a wide range of results. The 95% upper-confidence level for arsenic in the state is 40 mg/kg. The Montana Department of Environmental Quality has therefore set 40 mg/kg as their arsenic limit. Multiple other states have set limits ranging between 20 and 40 mg/kg. Using the more stringent requirement of 20 mg/kg, the arsenic soil level of the lagoons is well within an acceptable limit. This is also lower than the 75 kg/mg limit for land-applied biosolids found in IDEQ's Guidance for Land Application of Municipal Biosolids. The other parameter above the established RATLs was the fecal coliform level of 1,900 in the soils zero to six inches above the liner. IDEQ land application guidelines for biosolids set a limit of 2,000,000 for Class B biosolids. Additionally, the life span fecal coliform in soils is relatively short. Several experiments have shown that high levels of concentration return to background levels in less than 52 days. The property will be closed to public use until after the property sale on October 23, 2014, seven weeks after the contractor finished grading the site. The combination of these two items minimizes the health risk to the public. For more information regarding RATLs, please refer to the QAPP for Sewer Lagoon Decommissioning prepared by Keller Associates, dated March 2014. 214019-003/5/Rpts/14-378 MERIDIAN HEIGHTS WATER & SEWER DISTRICT '••" OctoberFINAL DECOMMISSIONING REPORT a E L L E R associates Table 1: Soil and Sludge Remediation Action Target Levels LagoonResidential Aeration Lagoon Storage Parameters Background - of Concern Units RATLs Screening Soil LeveIS2 Solids Solids Below Arsenic mg/kg 5.5 0.61 5.1 3.4 3.4 3.1 2.1 7.9 6.6 4.2 Cadmium mg/kg 7 7 2.035 1.81 1.81 2.25 2.06 2.02 1.84 1.56 Copper mg/kg 310 310 11.85 152 152 16.8 15.9 9.9 8.1 8.9 Lead mg/kg 400 400 7.7 5.0 5.0 6.1 4.7 6.3 6.0 5.5 Mercury mg/kg 1 1 0.03 .14 .14 .04 .02 .03 .03 .03 Nickel mg/kg 150 150 8.6 5.7 5.7 7.7 6.9 6.5 6.0 7.2 Selenium mg/kg 39 39 2.25 2.9 2.9 <1.0 <1.0 <1.0 <1.0 4.3 Uranium mg/kg 23 23 1.35 9.52 5.87 2.03 1.38 1.46 Zinc mg/kg 2300 2300 48.85 437 437 49.3 37.9 40.1 37.2 31.4 Average Fecal MPN*/g <150 <150 <150 1,900 <150 <150 Coliform Notes: Not Available MPN=Most Probable Number 1. EPA Regional Screening Level Summary Table,May 2013. 2. Background levels were established by taking the average data of samples taken in the surrounding areas located in the sheep field and park. 214019-003/5/Rpts/14-378 MERIDIAN HEIGHTS WATER & SEWER DISTRICT ••- October 201 FINAL DECOMMISSIONING REPORT 10 KELLER associates 2.7 Final Closure After all of the biosolids and liners were removed from the site, the contractor removed all pipe inlets and outlets from the lagoon embankments. All pipe penetrations were removed to a minimum of three feet behind the embankments. The contractor also removed the concrete spillway between the aeration and storage lagoons, as well as electrical wires used to power the aerators. After the demolition work was completed, the contractor pushed all of the dirt piles from other District projects into the bottom of the aeration lagoon and graded the bottom and sides of the lagoon. On September 16, 2014, a substantial completion walkthrough was conducted at the site with the contractor, District staff, and Ryan Morgan of Keller Associates. A few minor punch-list items were noted, and the meeting was adjourned. After completing the punch-list items, the construction access on the adjacent property was then removed and the fencing restored to its previous condition. The contractor demobilized from the site on September 26, 2014. 2.8 Final Costs During June 2014, the District requested bids from contractors to perform the work described in the approved Decommissioning Plan. A separate set of plans and specifications was prepared for the bid process that included the Decommissioning Plan and a portion of the QAPP as appendices. On June 17, the District rejected all bids and elected to rebid the project. Bids were opened on July 15, 2014, and the District elected to award the contract to Paul Construction, Inc. of Meridian, Idaho. Bid results were based on a unit price for biosolids and soil removal, and lump sum for the remainder of the project. A copy of Paul Construction's bid tab is included in Table 2 below. Table 2: Paul Construction's Bid Tabulation Item Approx. Unit Unit Price Qty- Excavate and Remove Biosolids 180 Tons $ 65.00 $ 11,700.00 Excavate and Remove Top 6"Soil 3720 CY $ 33.00 $ 122,760.00 Remove Lagoon Liner 1 LS $ 103,240.00 $ 103,240.00 Miscellaneous Demolition 1 LS $ 3,000.00 $ 3,000.00 Erosion Control 1 LS $ 5,000.00 $ 5,000.00 Rough Grading 1 LS $ 16,000.00 $ 16,000.00 TOTAL $ 261,700.00 The total biosolids removed from the site exceeded ten times the amount estimated in the bid tabulation, resulting in a large increase to the actual construction cost. Table 3 below shows the final contract price as reflected in Paul Construction's final invoice. 214019-003/5/Rpts/14-378 MERIDIAN HEIGHTS WATER & SEWER DISTRICT '••" OctobMA er FINAL DECOMMISSIONING REPORT KELLER associates Table 3: Paul Construction's Final Contract Price Item Qty- Unit Unit Price Amount Excavate and Remove Biosolids 2383.72 Tons $ 65.00 $ 154,941.80 Excavate and Remove Top 6" Soil 2989.53 CY $ 33.00 $ 98,654.49 Remove Lagoon Liner 1 LS $ 103,240.00 $ 103,240.00 Miscellaneous Demolition 1 LS $ 3,000.00 $ 3000.00 Erosion Control 1 LS $ 5,000.00 $ 5000.00 Rough Grading 1 LS $ 16,000.00 $ 16000.00 TOTAL $ 380,836.29 3. PROJECT OVERSIGHT 3.1 District Board An elected board consisting of a chairperson and four members oversees the District. Board members are elected to a six-year term and may serve an unlimited amount of terms. The Board meets once a month on the third Tuesday at 6:30 pm. Board members receive a small stipend for attending board meetings. The Board also reserves the right to hold additional meetings as needed to discuss District policies and issues. All work on the decommissioning project was done under their oversight. 3.2 District Employees The District currently employs two full-time employees. Gina Harris is the District Clerk/Treasurer and oversees all billings, accounts receivables, and customer service operations of the District. She has limited decision-making authority but reports to the Board any issues at the monthly Board meetings. Gina coordinated with Keller Associates on the general oversight of the project. The other full-time employee, Ken Acuff, holds a Class 1 Operator's License. He was involved with operational decisions during the decommissioning process and participated in the substantial completion walkthrough. 3.3 Contractor Paul Construction, Inc. of Meridian, Idaho, was hired by the District to decommission the lagoons. Jim Paul, owner of Paul Construction, provided construction management for the project. Tim Paul was the site superintendent and oversaw the day-to-day operation of the decommissioning. Tim coordinated testing schedules, as well as trucking procedures, with Keller Associates and Analytical Laboratories, Inc. 214019-003/5/Rpts/14-378 MERIDIAN HEIGHTS WATER & SEWER DISTRICT '••" October 201 FINAL DECOMMISSIONING REPORT KELLER associates 3.4 Testing Analytical Laboratories, Inc. of Boise, Idaho, was contracted by the District to collect and test all sampling for the site. Sandy Koch served as project manager for Analytical Laboratories. She oversaw all sampling at the site, including the preparation of many of Analytical Laboratory's SOPs. Analytical Laboratories maintains all required certifications for testing and collection done in conjunction with the decommissioning project. 3.5 Engineer of Record Keller Associates is the current Engineer of Record for the District and provided technical oversight during the decommissioning of the lagoons. Keller Associates also provided construction observation for the project and maintained communication with the contractor and District throughout the project. 214019-003/5/Rpts/14-378 MERIDIAN HEIGHTS WATER & SEWER DISTRICT '••" Octobe FINAL DECOMMISSIONING REPORT KE L LE R associates REFERENCES Centra Consulting, Inc., January 13, 2014. "Quality Assurance Project Plan for Sewer Lagoon Decommissioning." Prepared for Meridian Heights Water and Sewer District. Department of Environmental Quality Boise Regional Office, December 12, 2009. "Municipal Wastewater Reuse Permit LA-000067-04", Boise, Idaho. Minnesota Pollution Control Agency, October 2010. "Decommissioning or Relining Domestic Wastewater Ponds, Requirements and Procedures", Minnesota. 214019-003/5/Rpts/14-378 MERIDIAN HEIGHTS WATER & SEWER DISTRICT '••" Appendix A VICINI Y MAP M. �r-. ram_ l z .. ' o r 1 131 P • , i. 1 SCALE a _t I _ v � - 150 0 05 150 300 S4 FEET) . 1 INCk�,-150 FT m p mw SEWER MAIN EASEMENT ;' mom Z sNoisin3a ft WELL NO. 3 I4 1 r� •� uj U I _ L WELLNO. ' F <Z z a v ocoz zaoz �EJCKY 1DGE wZMi'CD ir W �N 02 �i I r L L Ll .1 w 3 c~i 0 o 11Do _ fl ON .mi LEGEND ' WATER MAI - ' �: w<wm< IAN ti, j W Z ci W o — — — — WATER DISTRICT BOUNDARY y, EASEMENT I�E,I I = o «� EXISTING 6" WATER MAIN IN L "' zi SUBDIVISIONS �, re T ti � D r_ Z i CURRENT 0 ALTERNATE 40 EXISTING 8" WATER MAIN IN WASTEWATER SUBDIVISIONS REUSE WASTEWATER � PERPETUAL REUSE EASEMENT PERPETUAL PROPOSED 6" TO UPGRADE EASEMENT - >! '•-` 14 „ 0 sa TO 8 �- - �i FIRE HYDRANT t / _ _ _nw7 Io LLJ to DZH ? W waN 0 F rn Ate.• ��1k-�ad.t*i� .�it�� � ..���1 �r�•'ri{�l�i:.jW. }�.. �y �~ ` '~, r F� � s.rr' �Y,.�i �' � :.:- � :� RkG I� pp A endix B _ SAMPLE SIONS c m m W•- +� m J SOIL SAMPLES BELOW THE SOIL LINER WILL BE COLLECTED AT THE LEGEND J o Wm SPECIFIED LOCATIONS.ADDITIONAL SAMPLES WILL BE COLLECTED ® SOIL SAMPLING LOCATION Y m IN AREAS WHERE LINER DEFICIENCIES ARE OBSERVED, IF ANY. 0 SLUDGE SAMPLING LOCATION SCALE TOTAL SAMPLES: SOIL SAMPLES:20 PER SAMPLING EVENT(2 EVENTS) 100 0 50 100 200 SLUDGE SAMPLES:10 PER SAMPLING EVENT(1 EVENT) F_ U (FEET) � � 1 INCH=100 FT = p I � � / w Lu Z N w Q Lu __—_---_— _ _ — _y �___'===.58_BZL•M.. .00.00N 2660 _�-----_---2660 SS-2 i/ SS-1 — —.�\\\� � /6/ TREAT ENT OND g _3 SL-9 _ •� / vs v�� -4 WAT SUR SE v �/ — °\ II qIII a ll l 11/ \. / SL-6 \\\\\\ 1 Z 1 II I a 1111 I S -18VAAA VAA�\I ® A\\\III /�/ /' z \ 1 P I I I SS-12VA AA \ \\ S-6 1 II \ SL- \ II ��IIla JI 11 �>a I I I r/ \ � dl IIIIJ�III IIII al ll 1111 \ .\ \ p\\\ _3 p �I I III �III ll lj aluI l �M\ Illll IIIIIII� I?Y�j �ll L-7 \\\\AI I�� \\ SL5 ✓iii�e / �` all III al 1�11�I IT STO AGE P ND SL-8 "IIII I p1111 Il 111� l al II IIII WAT R SU ACE //l ll�� AA \v! /i / :�/ // U I111I11 II1a III I1 ® 0 ® \\' /` -5'/ / // I I I I al �I 111 al III SS- SS-1 ii a 1111 11� l 11 11 l Ia 111 SS ✓ i'i�� LL 0053E 240."00 I 1 a I 1\ 1°l 1 Ill I I II III 1l1 Ill= �i i ii ��"�" s'"�® —�—•— /' / / � // Q I I� V A \ �I �11141� ��Il� 1lll�k III IIII SL-10 wt \\ till \ I�I Val III IIII ?,9 sa Ivj\ 4 III I -19 S p Jr I --�— --/ / _____ _ p W IL a j Q a I I I p I I 0 PROJECT NO. z 214019 FIGURE NO. C ��1k-�ad.t*i� "�it�� � ..���1 �r�•'ri{�l�i:.jW. }�.. �y �~ ` '~, r F� � s.rr' �Y,.�i �' � :.:- � :� RkG I� Appendix C SAMPLL RESULTS Analytical Laboratories , Inc . 1804 N . 33rd Street Boise, Idaho 83703 Date Report Printed : 8/ 15 /2014 Phone ( 208 ) 342 - 5515 http : //www . analyticallaboratories . com Laboratory Analysis Report Sample Number : 1430471 Attn : KEN ACUFF Collected By : S CURTIS MERIDIAN HEIGHTS Submitted S CURTIS P O BOX 472 MERIDIAN , ID 83680 Source of Sample . SMALL POND SOIL COMPOSITE # 1 Time of Collection : 10 : 00 Date of Collection : 8/7/2014 Date Received : 8 /7/2014 Repo, t 3? : Ee : S / 15 /2014 Dry Weight Results : mg/ kg Arsenic 6 . 3 E Cadmium 3 . 4 r r Y Copper 284 pUu 2 Lead 9 Mercury 0926 Nickel 11 Selenium 5 . 4 Zinc 815 Analysis Date Test Requested MCL Result Units MDL Method Completed Analyst Arsenic 503 3 . 4 mg/kg 1 . 0 SW 846 6010 8 / 12/2014 KC Cadmium 503 1 , 81 mg/kg 0 , 05 SW 846 6010 8/ 12/2014 KC Conner 503 152 mg/kg 0 . 1 SW 846 6010 8/ 14/2014 KC Lead 503 5 . 0 mg/kg 0 . 5 SW 846 6010 8/ 12/2014 KC Mercury 503 0 , 14 mg/kg 0 , 02 SW 846 7471 8 / 12/2014 JMS Metals Digestion * SW 846 3050 8/8/2014 JMS Nickel 503 5 . 7 mg/kg 0 . 2 SW 846 6010 8/ 14/2014 KC Paint Filter Liquid Test * SW 846 9095A 8/ 12/2014 JH * Sample does not contain free liquids for purposes of 40CFR 264 . 314 and 265 . 314 . Selenium 503 2 . 9 mg/kg 1 . 0 SW 846 6010 8/ 12/2014 KC Zinc 503 437 mg/kg 0 . 1 SW 846 6010 8/ 14/2014 KC DRY WT 503 * 8/ 15/2014 SK Total Solids 53 . 6 % 0 , 200 SM 2540 G 8/8/2014 GM J CC : DEQ-TODD CRUTCHER; RYAN MORGAN KELLER & ASSOC . 131 SW i 5TH AVE STE A MERIDIAN , ID 83642 ank you for choosing Analytical Caboralories for your testing needs. MCL = Maximum Contamination Level If you have any questions about this report, or any MDL = Method/Minimum Detection Limit future analytical needs, please contact your client UR = Unregulated manager: Sandy Koch Analytical Laboratories , Inc . I SO4 N . 33rd Street Date Report Printed : 8/ 15/2014 4 : 18 : 37 PM Boise, Idaho 83703 http :/hvww .analyticallabotntories . com I" .. - Phone ( 208 ) 342 -5515 These test results relate only to the items tested. - t, Laboratory Analysis Report Sample Number : 1430472 Attn : KEN ACUFF Collected Bye S CURTIS MERIDIAN HEIGHTS Submitted By : S CURTIS P O BOX 472 MERIDIAN , ID 83680 Source of Sample : SMALL POND SOIL COMPOSITE #2 Time of Collection : 10 : 00 Date of Collection : 8 /7/2014 Date Received : 8 /7/2014 Report Date : 8 / 15/2014 PWS # : Field Temp : Temp Rcvd in Lab : PWS Name : MERIDIAN HEIGHTS - - - - - Test Requested MCL Result Analysis Units MDL Method Date Analyst . Completed Arsenic 503 3A mg/kg 1 . 0 SW 846 6010 8/ 12/2014 KC Cadmium 503 1 . 81 mg/kg 0 , 05 SW 846 6010 8/ 12/2014 KC Copper 503 152 mg/kg 0A SW 846 6010 8/ 14/2014 KC Lead 503 5 . 0 mg/kg 0 . 5 SW 846 6010 8/ 12/2014 KC Mercury 503 0 , 14 mg/kg 0 , 02 SW 846 7471 8/ 12/2014 JMS Metals Digestion * SW 846 3050 8/8/2014 JMS Nickel 503 5 . 7 mg/kg 0 . 2 SW 846 6010 8/ 14/2014 KC Paint Filter Liquid Test * SW 846 9095A 8/ 12/2014 JH * Sample does not contain free liquids for purposes of 40CRR 264 . 314 and 265 . 314 . Selenium 503 2 . 9 mg/kg 1 . 0 SW 846 6010 8/ 12/2014 KC Zinc 503 437 mg/kg 0 . 1 SW 846 6010 8/ 14/2014 KC DRY WT 503 * 8/ 15/2014 SK Total Solids 53 . 6 % 0 . 200 SM 2540 G 8/8/2014 GM C.1117 1ea_ Ub t . AUG 2 7 ""114 CC : DEQ -TODD CRUTCHER; RYAN MORGAN KELLER & ASSOC . 131 SW 5TH AVE STE A MERIDIAN , ID 83642 Thank you for choosing Analytical Laboratories for your testing needs . b1CL = Maximum Contamination Level If you have any questions about this report, or any future IMDL = Method/Minimum Detection Limit analytical needs, please contact your client manager. UR = Unregulated Page I of 1 Sandy Koch San - - - - - -- - -- - - Analytical Laboratories , Inc . 1804 N . 33rd Street Boise, Idaho 83703 Date Report Printed : 8/29/2014 Phone (208 ) 342-5515 http://wwxv . analyticalIaboratories. com Laboratory Analysis Report Sample Number: 1431576 Attn : KEN ACUFF Collected By : S KOCH MERIDIAN HEIGHTS Submitted S KOCH P O BOX 472 MERIDIAN, ID 83680 Source of Sample : LITTLE POND SURFACE TO 2 " DOWN Time of Collection : 10 : 15 Date of Collection : 8/ 14/2014 Date Received : 8/ 14/2014 Report Date: 8/29/2014 Dry Weight Results , mg/kg Arsenic 3 . 8 Cadmium 2 . 77 Copper 20 . 7 Lead 10 Mercury 0 . 05 Nickel 10 Selenium < 1 . 2 Uranium 11 . 7 Zinc 60 . 7 Analysis Date Test Requested MCL Result Units MDL Method Completed Analyst Fecal Coliform - 503 *200 MPN/g SM 9221 8/ 15/2014 Lrvl * Fecal coliforms calculated as MPN/g dry weight. Arsenic 503 3 . 1 mg/kg I . 0 SW 846 6010 8/26/2014 JH < 1 .40 mg/L 1 .40 SW 846 6010 8/ 18/2014 KC Arsenic TCLP Barium TCLP < 1 .20 mg/L ISMSW 846 6010 8/ 18/2014 KC Cadmium 503 2. 25 mg/kg 0.05 SW 846 6010 8/26/2014 JH Cadmium TCLP <0 . 19 mg/L 0 . 19 SW 846 6010 8/ 18/2014 KC Chromium TCLP <0 . 86 mg/L 0. 86 SW 846 6010 8/ 18/2014 KC Copper 503 16. 8 mg/kg 001 SW 846 6010 8/26/2014 JH Lead 503 6 . l mg/kg 0 . 5 SW 846 6010 8/26/2014 JH Lead TCLP <0 . 37 mg/L 0 . 37 SW 846 6010 8/ 18/2014 KC Mercury 503 0 .04 mg/kg 0. 02 SW 846 7471 8/25/2014 JMS Mercury TCLP <0.02 mg/L 0. 02 SW 846 7470 8/ 18/2014 JMS Metals Digestion * SW 846 3050 8/ 19/2014 JMS Nickel 503 7 . 7 mg/kg 0 . 2 SW 846 6010 8/26/2014 JH Paint Filter Liquid Test * SW 846 9095A 8/ 15/2014 JH * Sample does not contain free liquids for purposes of 40CFR 264, 314 and 265. 314. Selenium 503 < 1 . 0 mg/kg 1 . 0 SW 846 6010 8/26/2014 JH Selenium TCLP <0. 16 mg/L 0. 16 SW 846 6010 8/ 18/2014 KC Silver TCLP <0 . 30 mg/L 0. 30 SW 846 7760 8/ 18/2014 JH Page 2 of 2 c :-fi Laboratory Analysis Report Sample Number : 1431576 Analysis Date Test Requested MCL Result Units MDL Method Completed Analyst TCLP Extraction * SW 846 1311 8/ 15/2014 JMS Uranium, U 9 . 52 tng/kg 0. 10 EPA 200. 8 8/22/2014 JH Zinc 503 49 . 3 mg/kg 0 . 1 SW 846 6010 8/26/2014 JH DRY WT 503 * 8/29/2014 SK Total Solids 81 . 2 % 0 .200 SM 2540 G 8/28/2014 GM Volatile Solids-503 2 . 7 % SM 2540 G 8/28/2014 DLR t CC: DEQJODD CRUTCHER; RYAN MORGAN KELLER & ASSOC. 131 SW 5TH AVE STE A MERIDIAN , ID 83642 Thank you for choosing Analytical Laboratories for y r t ting nee s. MCL = Maximum Contamination Level If you have any questions about this report, or any MDL = Method/Minimum Detection Limit future analytical needs, please contact your client UR = Unregulated manager: Sandy Koch Analytical Laboratories , Inc . 1804 N . 33rd Street Boise, Idaho 83703 Date Report Printed : 8/29/2014 Phone ( 208 ) 342-5515 http : //www. analyticallaboratories . com Laboratory Analysis Report _ Sample Number : 1431577 Attn : KEN ACUFF Collected By : S KOCH MERIDIAN HEIGHTS Submitted S KOCH P 0 BOX 472 MERIDIAN , ID 83680 Source of Sample : LITTLE POND 2 " TO 4 " Time of Collection : 10 : 15 Date of Collection : 8 / 14/2014 Date Received : 8/ 14/2014 Report Date : 8/29/2014 Dry Weight Results : mg/kg Arsenic 2 . 4 Cadmium 2 . 37 Copper 18 . 3 Lead 10 Mercury 0 . 02 Nickel 10 Selenium < 1 . 1 Uranium 6 . 7 Zinc 43 . 5 Analysis Date Test Requested MCL Result Units MDL Method Completed Analyst Fecal Coliform - 503 * < 150 MPN/g SM 9221 8/ 15/2014 LM * Fecal coliforms calculated as MPN/g dry weight. A.S• niC 503 2 . 1 mg/kg 1 . 0 SW 846 6010 8/26/2014 JH Arsenic TCLP < 1 . 40 mg/L I A0 SW 846 6010 8/ 18/2014 KC Barium TCLP < 1 . 20 mg/L 1 . 20 SW 846 6010 8/ 18/2014 KC Cadmium 503 2 . 06 mg/kg 0. 05 SW 846 6010 8/26/2014 JH Cadmium TCLP <0. 19 mg/L 0 . 19 SW 846 6010 8/ 18/2014 KC Chromium TCLP <0 . 86 mg/L 0 . 86 SW 846 6010 8/ 18/2014 KC Copper 503 15 . 9 mg/kg 0. 1 SW 846 6010 8/26/2014 JH Lead 503 4 . 7 mg/kg 0 . 5 SW 846 6010 8 /26/2014 JH Lead TCLP <0 . 37 mg/L 0 . 37 SW 846 6010 8/ 18/2014 KC Mercury 503 0 . 02 mg/kg 0. 02 SW 846 7471 8/25/2014 JMS Mercury TCLP <0 . 02 mg/L 0 . 02 SW 846 7470 8 / 18/2014 JMS Metals Digestion * SW 846 3050 8/ 19/2014 JMS Nickel 503 6 .9 mg/kg 0 . 2 SW 846 6010 8/26/2014 JH Paint Filter Liquid Test * SW 846 9095A 8/ 15/2014 JH * Sample does not contain free liquids for purposes of 40CFR 264. 314 and 265 . 314 . Selenium 503 < 1 . 0 mg/kg 1 . 0 SW 846 6010 8 /26/2014 JH Selenium TCLP <0 . 16 mg/L 0 . 16 SW 846 6010 8/ 18/2014 KC Silver TCLP <0 . 30 mg/L 0 . 30 SW 846 7760 8 / 18/2014 JH TCLP Extraction * SW 846 1311 8/ 15/2014 JMS Uranium , U 5 . 87 mg/kg 0 . 10 EPA 200 . 8 8/22/2014 JH 2 inc 503 37 . 9 mg/kg 0 . 1 SW 846 6010 8/26/2014 JH Page 2 02 2 Laboratory Analysis Report t {^ Sample Number : 1431577 Analysis Date Test Requested IIICL Result Units MDL Method Completed Analyst DRY WT 503 * 8/29/2014 SK Total Solids 87 . 1 % 0 .200 SM 2540 G 8/ 15/2014 DLR CC: DEQ-TODD CRUTCHER, RYAN MORGAN KELLER & ASSOC , 131 SW 5TH AVE STE A MERIDIAN, ID 83642 Thank you for choosing Analytical Laboratories Fo ou testing needs. MCL = Maximum Contamination Level If you have any questions about this report, or any MDL = Method/Minimum Detection Limit future analytical needs, please contact your client UR = Unregulated manager: Sandy Koch RECEE " 2 Analytical Laboratories , Inc . -',- ,. 1804 N . 33rd Sect Date Report Printed : T') 3,12014 1 I :•48 : 12 ANl Boise, Idaho 83703 htgr :", www .analyticallaburalurics.eum Phone (208 ) 342 -5515 These test results relate only to the items tested. ' Laboratory Analysis Report Sample Number : 1428385 Attn : KEN ACUFF Collected By : S CURTIS MERIDIAN HEIGI3TS Submitted By : S CURTIS P O BOX 472 NIERIDIAN , ID 83680 Source of Sample : TREATMENT POND SOIL COMPOSITE # 1 Time of Collection : 13 : 30 Date of Collection : 6/20/2014 Date Received : 7/24/2014 Report Date : 7/28/2014 PW5# : Field Temp : Temp Rcvd in Lab : PWS Name : MERIDIAN HEIGHTS ADDITIONAL TESTIN OF LAB# 1422918 Analysis Date Test Requested MCL Result Units MDL Method Completed Analyst , Paint Filter Liquid Test * SW 846 9095A 7/28/2014 JH * Sample does not contain free liquids for purposes of 40CRR 264, 314 and 265 .314 . r I CC : DEQ-TODD CRUTCHER; RYAN MORGAN KELLER S. ASSOC. 131 S 5TH AVE STE A MERIDIAN, ID 83642 Thank you forchoosing Analytical Laboratories for your testing needs. MCL = Maximum Contamination Level II' you have any questions about this report, or any finnnre NIDL = Method/Minimunr Detection Limit analytical needs, please contact your client manager. ; UR = Unregulated Page I of I Sandy Koch Analytical Laboratories , Inc . ._ ,. 1804 N . 33rd Street Date Report Printed : TI) 82014 1 L48 : 11 AM Boise, Idaho 83703 http : / www .analyticallnhoratoriesxwu Phone 208 342 - 5515 l ) These lest results relate only to the items tested. Laboratory Analysis Report Sample Number : 1428386 Attn : KEN ACUFF Collected By : S CURTIS MERIDIAN HEIGHTS Submitted By : S CURTIS P O BOX 472 NIERIDIAN , ID 83680 Source of Sample : TREATMENT POND SOIL COMPOSITE #2 Time of Collection : 13 : 30 Date of Collection : 6/20/2014 Date Received : 7/24/2014 Report Date : 7/28/2014 PWS # e Field Temp : Temp Revd in Lab : PWS Name : MERIDIAN HEIGHTS ADDITIONAL TESTIN OF LAB# 1422919 Analysis Date Jest Requested MCL Result Units MDL Method Completed Analyst i Paint Filter Liquid Test SW 846 9095A 7/28/2014 JH * Sample does not contain tree liquids for proposes of 40CRR 264 , 314 and 265 . 314 . CC : DEQ -TODD CRUTCHER; RYAN NIORGAN KELLER & ASSOC . 131 SW 5TH AVE STE A MERIDIAN , ID 83642 / Thank you for choosing Analytical Laboratories for your testing needs. MCL = Maximum Contamination Level If you have any questions about this report, or any future tvl DL = Method/ Mininnun Detection Limit analytical needs, please contact your client manager. Ult = Unregulated Page I of 1 Sandy Koch Nly Analytical Laboratories , Inc . 1804 N . 33rd Street Date Report Printed: 7/7/2014 2 : 36 : 07 PM Boise, Idaho 83703 http :/hvNr�v.analyticallaboratories. com Phone (208) 342 -5515 These test results relate only to the items tested . OR 1 all i Laboratory Analysis Report Sample Number: 1422919 Attn : KEN ACUFF Collected By: S CURTIS MERIDIAN HEIGHTS Submitted By : S CURTIS P O BOX 472 MERIDIAN, ID 83680 Source of Sample : TREATMENT POND SOIL COMPOSITE #2 Time of Collection : 13 : 30 Date of Collection : 6/20/2014 Date Received : 6/20/2014 Report Date : // PWS# : Field Temp : Temp Rcvd in Lab : PWS Name : MERIDIAN HEIGHTS Analysis Date Test Requested MCL Result Units MDL Method Completed Analyst Arsenic TCLP < 1 . 40 mg/L 1 , 40 SW 846 6010 7/2/2014 KC Barium TCLP < 1 . 20 mg/L 1 . 20 SW 846 6010 7/2/2014 KC Cadmium TCLP <0 . 19 mg/L 0 , 19 SW 846 6010 7/2/2014 KC Chromium TCLP <0 . 86 mg/L 0 , 86 SW 846 6010 7/2/2014 KC Lead TCLP <0 . 37 mg/L 0 . 37 SW 846 6010 7/2/2014 KC Mercury TCLP <0 . 02 mg/L 0 , 02 SW 846 7470 6/26/2014 JMS Selenium TCLP <0 . 16 mg/L 0 , 16 SW 846 6010 7/2/2014 KC Silver TCLP <030 mg/L 0 . 30 SW 846 7760 7/7/2014 JH TCLP Extraction * SW 846 1311 6/24/2014 JMS CC : DEQ-TODD CRUTCHER; RYAN MORGAN KELLER & ASSOC . 131 SW STH AVE STE A MERIDIAN, ID 83642 Thank you for choosing Analytical Laboratories for your testing needs. MCL = Maximum Contam nation Level If you have any questions about this report, or any future M DL = Method/Minimum Detection Limit analytical needs, please contact your client manager. UR = Unregulated Page 1 of 1 Sandy Koch Analytical Laboratories , Inc . 1804 N . 33rd Street Dale Report Printed: S/ 19/2014 10 : 17 :05 AM Boise, Idaho 83703 http :HNvN%,w. analyticallaboratories. com i Phone (208 ) 342-5515 'These test results relate only to the items tested. i00 - � ti. Laboratory Analysis Report Sample Number : 1431574 Attrn : KEN ACUFF Collected Bye S KOCH MERIDIAN HEIGHTS Submitted By : S KOCH P 0 BOX 472 MERIDIAN , ID 83680 Source of Sample : BIG POND 2 " Time of Collection : 10 : 00 Date of Collection : 8/ 14/2014 Date Received : 8/ 14/2014 Report Date : 8/ 19/2014 PWS# : Field Temp: Temp Revd in Lab : PWS Name : MERIDIAN HEIGHTS Analys Date Test Requested MCL Result is Units MDL Method Completed Analyst , Dry Weight Calculation * 8/ 15/2014 LM Fecal Coliform - 503 * < 150 MPN/g SM 9221 8/ 15/2014 LM * Fecal coliforms calculated as MPN/g dry weight. Arsenic TCLP < 1 .40 mg/L 1 .40 SW 846 6010 8/ 18/2014 KC Barium TCLP < 1 . 20 mg/L 1 .20 SW 846 6010 8/ 18/2014 KC Cadmium TCLP <0. 19 mg/L 0. 19 SW 846 6010 8/ 18/2014 KC Chromium TCLP <0. 86 mg/L 0. 86 SW 846 6010 8/18/2014 KC Lead TCLP <0 . 37 mg/L 0 . 37 SW 846 6010 8/ 18/2014 KC Mercury TCLP <0. 02 mg/L 0 . 02 SW 846 7470 8/ 18/2014 JMS Paint Filter Liquid Test * SW 846 9095A 8/ 15/2014 JH * Sample does not contain free liquids for purposes of 40CFR 264,314 and 265 ,314 . Selenium TCLP <0 . 16 mg/L 0 . 16 SW 846 6010 8/ 18/2014 KC Silver TCLP <0 . 30 mg/L 0 . 30 SW 846 7760 8/ 18/2014 JH TCLP Extraction * SW 846 1311 8/ 15/2014 JMS Total Solids 85 . 2 % 0 . 200 SM 2540 G 8/ 15/2014 DLR CC : DEQ-TODD CRUTCHER; RYAN MORGAN KELLER & ASSOC. 131 SW 5TH AVE STE A MERIDIAN, ID 83642 Thank you for choosing Analytical IT for your testing needs. MCL = Maximum Contamination Level If you have any questions about this report, or any future MDL = Method/Mininnnn Detection Limit analytical needs, please contact your client manager: UR = Unregulated — — - Page I of I Sandy Koch CAnalytical Laboratories , Inc . 1804 N . 33rd Street Date Report Printed: 8/ 19/2014 10 : 18 :04 AN4 Boise, Idaho 83703 http :/heww. analyticallaboratories . com i Phone ( 208 ) 342-5515 These test results relate only to the items tested. wit Laboratory Analysis Report Sample Number : 1431575 Attn : KEN ACUFF Collected By : S KOCH MERIDIAN HEIGHTS Submitted By : S KOCH P O BOX 472 C , t : . , "" , NIERID [ AN , ID 83680 Source of Sample : BIG POND 4 " Time of Collection : 10 : 00 Date of Collection : 8/ 14/2014 Date Received : 8/ 14/2014 Report Date: 8/ 19/2014 PWS#: Field Temp: Temp Rcvd in Lab : PWS Name : MERIDIAN HEIGHTS Analysis Date Test Requested MCL Result Units MDL MethodCompleted Analyst Dry Weight Calculation * 8/ 15/2014 LM Fecal Coliform in 503 * < 150 MPN/g SM 9221 8/ 15/2014 LM *Fecal colifortns calculated as MPN/g dry weight. Arsenic TCLP < 1 .40 mg/L 1 ,40 SW 846 6010 8/ 18/2014 KC Barium TCLP 1 ,61 mg/L 1 .20 SW 846 6010 8/ 18/2014 KC Cadmium TCLP <0. 19 mg/L 0. 19 SW 846 6010 8/ 18/2014 KC Chromium TCLP <0. 86 mg/L 0. 86 SW 846 6010 8/ 18/2014 KC Lead TCLP <0. 37 mg/L 0. 37 SW 846 6010 8/ 18/2014 KC Mercury TCLP <0.02 mg/L 0, 02 SW 846 7470 8/ 18/2014 JMS Paint Filter Liquid Test * SW 846 9095A 8/ 15/2014 JH * Sample does not contain free liquids for purposes of 40CFR 264.314 and 265 , 314. Selenium TCLP <0 . 16 mg/L 0 . 16 SW 846 6010 8/ 18/2014 KC Silver TCLP <0. 30 mg/L 0 . 30 SW 846 7760 8/ 18/2014 JH TCLP Extraction * SW 846 1311 8/ 15/2014 JMS Total Solids 88 .3 % 0. 200 SM 2540 G 8/ 15/2014 DLR CC : DEQ-TODD CRUTCHER; RYAN MORGAN KELLER & ASSOC. 131 SW 5TH AVE STE A MERIDIAN, ID 83642 Thank you for choosing Analytical Laboratories for your testing needs. MCL = Mncimum Contatninalion Level If you have any questions about this report, or any fidure MDL = Method/Minimum Detection Limit -I Pa analytical needs, please contact your client manager: UR = Unregulated Page Sandy Koch Analytical Laboratories , Inc . � 1804 N. 33rd Street Boise, Idaho 83703 Date Report Printed: 8/27/2014 2 : 23 : 02 Phone (208) 342 - 5515 http ://www. analyticallaboratories . com Laboratory Analysis Report Sample Number: 1432924 Attn : KEN ACUFF Collected By : S KOCH MERIDIAN HEIGHTS Submitted By : S KOCH P O BOX 472 MERIDIAN, ID 83680 Source of Sample : 0 " -6 " ( SOIL) Time of Collection : 9 : 30 Date of Collection : 8/22/2014 Date Received : 8/22/2014 Report Date : // PWS# : Field Temp : Temp Rcvd in Lab : PWS Name : MERIDIAN HEIGHTS Analysis Date Test Requested MCL Result Units MDL Method Completed Analyst Fecal Coliform - 503 * 1 , 900 MPN/g SM 9221 8/23/2014 LM * Fecal coliforms calculated as MPN/g dry weight. Arsenic 503 7 . 9 mg/kg 1 . 0 SW 846 6010 8/26/2014 JH Cadmium 503 2 . 02 mg/kg 0 . 05 SW 846 6010 8/26/2014 JH Copper 503 9 . 9 mg/kg 0 . 1 SW 846 6010 8/26/2014 JH Lead 503 6 . 3 mg/kg 0 . 5 SW 846 6010 8/26/2014 JH Mercury 503 0 , 03 mg/kg 0 , 02 SW 846 7471 8/25/2014 JMS Metals Digestion * SW 846 3050 8/25 /2014 JMS Nickel 503 6. 5 mg/kg 0 . 2 SW 846 6010 8/26/2014 JH Selenium 503 < 1 . 0 mg/kg 1 . 0 SW 846 6010 8/26/2014 JH Uranium, U 2 , 03 mg/kg 0 , 20 EPA 200 . 8 8/27/2014 JH Zinc 503 40 . 1 mg/kg 0 . 1 SW 846 6010 8/26/2014 JH DRY WT 503 Total Solids 85 . 0 % 0 ,200 SM 2540 G 8/23/2014 GM CC : DEQ-TODD CRUTCHER; RYAN MORGAN KELLER & ASSOC. 131 SW 5TH AVE STE A MERIDIAN , ID 83642 '17hank you for choosing Analytical Laboratories for your testing needs. MCL = Maximum Contamination Level If you have any questions about this report, or any fitture MDL = MethodQvlinimum Detection Limit analytical needs, please contact your client manager: UR = Unregulated Sandy Koch Analytical Laboratories , Inc . 1804 N. 33rd Street Boise, Idaho 83703 Date Report Printed: 8/27/2014 2 : 23 : 02 Phone (208) 342 - 5515 http : //wNAm.anal)rticallaboratories . com Laboratory Analysis Report Sample Number: 1432925 Attn : KEN ACUFF Collected By : S KOCH MERIDIAN HEIGHTS Submitted By : S KOCH P O BOX 472 MERIDIAN, ID 83680 Source of Sample: 6 " LINER (SOIL,) Time of Collection : 9 : 30 Date of Collection : 8/22/2014 Date Received : 8/22/2014 Report Date : PWS# : Field Temp : Temp Rcvd in Lab : PWS Name : MERIDIAN HEIGHTS Analysis Date Test Requested MCL Result Units MDL Method Completed Analyst Fecal Coliform - 503 * < 150 MPN/g SM 9221 8/23/2014 LM *Fecal coliforms calculated as MPN/g dry weight. Arsenic 503 6 . 6 mg/kg 1 . 0 SW 846 6010 8/26/2014 JH Cadmium 503 1 , 84 mg/kg 0 , 05 SW 846 6010 8/26/2014 JH Copper 503 8 . 1 mg/kg 0A SW 846 6010 8/26/2014 JH Lead 503 6 . 0 mg/kg 0 . 5 SW 846 6010 8/26/2014 JH Mercury 503 0 . 03 mg/kg 0 , 02 SW 846 7471 8/25/2014 JMS Metals Digestion SW 846 3050 8/25/2014 JMS Nickel 503 6 . 0 mg/kg 0 . 2 SW 846 6010 8/26/2014 JH Selenium 503 < 1 . 0 mg/kg 1 . 0 SW 846 6010 8/26/2014 JH Uranium, U 138 mg/kg 0 ,20 EPA 200. 8 8/27/2014 JH Zinc 503 37 . 2 mg/kg 0 . 1 SW 846 6010 8/26/2014 JH DRY WT 503 Total Solids 85 . 5 % 0,200 SM 2540 G 8/23/2014 GM CC : DEQ-TODD CRUTCHER, RYAN MORGAN KELLER & ASSOC . 131 SW 5TH AVE STE A MERIDIAN, ID 83642 Thank you for choosing Analytical Laboratories for your testing needs. MCL = Maximum Contamination Level If you have any questions about this report, or any firture MDL = Method/Minimum Detection Limit analytical needs, please contact your client manager: UR = Unregulated Sandy Koch Analytical Laboratories , Inc . 1804 N. 33rd Street Boise, Idaho 83703 Date Report Printed: 9/4/2014 3 :26 : 54 P Phone (208) 342 -5515 r - http : //www. analyticallaboratories . com " Laboratory Analysis Report Sample Number: 1434118 Attn : KEN ACUFF Collected By: S KOCH MERIDIAN HEIGHTS Submitted By : S KOCH P O BOX 472 MERIDIAN, ID 83680 Source of Sample : 0 " -6 " BELOW LINER LARGE POND Time of Collection : 14 : 30 Date of Collection : 8/29/2014 Date Received : 8/29/2014 Report Date : 9/4/2014 PWS# : Field Temp : Temp Rcvd in Lab : PWS Name : MERIDIAN HEIGHTS Analysis Date Test Requested MCL Units MDL Method Analyst Result Completed y Fecal Coliform - 503 * < 150 MPN/g SM 9221 8/30/2014 TJR * Fecal Coliforms calculated as MPN/g dry weight. Arsenic 503 4 . 2 mg/kg LO SW 846 6010 9/3/2014 KC Cadmium 503 1 , 56 mg/kg 0, 05 SW 846 6010 9/3/2014 KC Copper 503 8 . 9 mg/kg 0 . 1 SW 846 6010 9/3/2014 KC Lead 503 5 . 5 mg/kg 0 . 5 SW 846 6010 9/3/2014 KC Mercury 503 0 , 03 mg/kg 0 , 02 SW 846 7471 9/2/2014 JMS Metals Digestion * SW 846 3050 9/2/2014 JMS Nickel 503 7 . 2 mg/kg 0 . 2 SW 846 6010 9/3/2014 KC Selenium 503 4 . 3 mg/kg 1 . 0 SW 846 6010 9/3/2014 KC Uranium, U 1 , 46 mg/kg 0 , 20 EPA 200. 8 9/4/2014 111 Zinc 503 3IA mg/kg 0 . 1 SW 846 6010 9/3/2014 KC DRY WT 503 Total Solids 88A % 0, 200 SM 2540 G 9/2/2014 GM Volatile Solids- 503 1 , 81 % SM 2540 G 9/2/2014 DLR CC : DEQ-TODD CRUTCHER; RYAN MORGAN KELLER & ASSOC . 131 SW 5TH AVE STE A MERIDIAN, ID 83642 Thank you for choosing Analytical Laboratories for your testing needs. MCL = Maximum Contamination Level If you have any questions about this report, or any firture MDL = Method/Minimum Detection Limit analytical needs, please contact your chent manager: UR = Unregulated Sandy Koch Appendix D PHOTOb glow ..y:'-z34.. `r''ryy:-t•�..�w.�',•?;,- .- -,.Y yam.. _ s,� :-} - � �_..+ ._.. Aeration Lagoonon - •, 2014. View looking • •rage Lagoon on - •, 2014. View lookingnorth r•• ov Storage --- ••• on •, 2014. View looking • • • •s in aeration lagoon • .• • e• i .+, .,._.. .. ..! - - y '..y• 1. rf �,�i � A.,,'a 77— tam - . • ,__ i&iF Saf.Gi_Y.,,�{{..-'tVi�'d:��•:'i�iii#' View of windrows in north portion of storage lagoon Containment of canal water overflow in windrows of storage lagoon. A. M-M .x w.�.rnc�llt�rl�.._... ..v. �. .a.i►,. . —"i'`�„�ti.,r� _ �.�._.__ _ 'r ,-may _ ,-r � _. Storage lagoon bottom after biosolids have been removed. Aeration lagoon bottom liner. Windrows are visible in middle of picture. g A" �ri� " '•y'�r• - 3 Sample collection with Analytical Laboratories. Depth measurement of sample location. Lam.'-.�. �r V �5'` `• ''�N� .�►-y _ • �` LI �` r •sue• f�-.'•- may, �- �Y �'. - �' y'•�= '`x t,• Soil sample hole for zero to six inches above lagoon liner in Close up of Sample hole in storage lagoon, bottom lagoon storage lagoon. liner visible at the bottom of the hole 3 � x Dump truck loaded and being covered prior to leaving the Trench excavation location in aeration lagoon. Biosolids and site. bottom lagoon liner stockpiles in foreground. �• f. ► f'jsr K:q.Qt haw: .A, Excavated trench in aeration lagoon two days after Excavate trench in aeration lagoon showing soil staining. excavation. 4 { L 1 Disturbed soils from removing of liner key around aeration Bottom of storage lagoon after removal of liner prior to lagoon substantial completion A6' -4-WIAM" ` •� -. ti' .�•_ -r esµ Y -F S_`_ i �.�.„` - . 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