Attachment_1_-_P1424Q0099_Work_Statement.docx

WORK STATEMENT GENERAL REQUIREMENTS – MONITOR WELL SAMPLING

The following guidelines indicate minimums to be met by an offeror regarding the required annual ground and surface water monitoring work located near the park's wastewater system percolation ponds at Fishing Bridge, Grant Village, Old Faithful, and Madison.

1. General: The contractor shall comply with the enclosed Work Statement, which is a part of this contract.

2. Timetable: The work of this contract shall cover the 2024 sampling season.

3. Field Work: Field work involves 58 well and surface water sites (Table 1) that shall be monitored between the dates of August 1st and September 30th, 2024, so the obtained monitoring data may be compared with previously collected data.

4. Report: A draft written annual report covering the work of this contract shall be submitted to the Contracting Officer by February 15, 2025. The NPS will provide comments on this draft by March 1, 2025. The contractor shall then submit a final, edited draft by March 31, 2025.

5. Logistics: The sampling sites, many in dense forest, are located within isolated areas of Yellowstone National Park, Wyoming, a part of the "Rocky Mountain" region. Variable and difficult snowy and rainy weather conditions and potentially dangerous encounters with park wildlife, (wolves, elk, bison, and bears) shall be expected throughout the sampling period.

The park roads are maintained by the government, however, the contractor's operations and access to the sampling sites or living quarters may be temporarily influenced by heavy visitor traffic, delays due to road maintenance, and temporary road closures due to wintery conditions. It shall be the contractor's responsibility to be continuously informed of local weather conditions and road information that may affect operations and access. For safety considerations, temporary road closures due to weather over high mountain passes and road snow removal scheduling are at the discretion of the government. As a result, delays or route detours due to heavy visitor traffic, road construction, and weather-related road closures shall be at no extra cost to the government. The contractor may contact 307-344-2117 for the park road report. For emergency service dial 911 (private phone or pay phone) or 9-911 (government or park phone).

The following are current potential road construction projects.

· On-going or New Contracted Road Construction – Work is currently under way on the the Yellowstone River Bridge on the park’s Northeast Entrance Road and the Lewis River Bridge on the park’s South Entrance Road. Expect 30-minute delays and possibly night closures.

· Road Re-Surfacing by Government Workforce – General annual park-wide re-surfacing and road maintenance is normally scheduled throughout the summer months. Expect 30-minute delays. The contractor is to the verify schedules with the COR.

Access into the park will only be permitted upon presentation of proper identification. This is done by securing and presenting a contractor gate pass. A pass will be required for each contractor vehicle. It shall be the contractor's responsibility to obtain gate passes from the COR who coordinates their issue with the park's Visitor Services Office located at Mammoth Hot Springs.

If sampling work takes place in September, Yellowstone National Park will assign the contractor one RV site at a Government contractor RV trailer court located within 55 miles of the sampling sites. If sampling work takes place in July or August, a park-assigned RV site is not guaranteed but will be provided if available. This site will most likely be at Lake or Canyon, but it may vary. It shall be the responsibility of the contractor to provide the RV unit. Tent camping is not permitted and it is not permitted to reside overnight at the sampling sites. The contractor may occupy the RV site with reasonable population as approved. The contractor shall be responsible for a lump sum rental fee of $430.34 if they choose to stay in this site during their work. This fee includes utilities (power, solid waste, water, and wastewater) as well as the use of a bathhouse. The contractor shall make independent arrangements for any propane supplies necessary. Coin operated laundry facilities are located nearby. Ice is not sold by the Government, but is sold at stores managed by park concessions.

If alternate or additional quarters are required, lodging arrangements shall be made outside of the park. The nearest communities outside of the park are West Yellowstone and Gardiner Montana. Because facilities within the park are primarily devoted to vacationing visitors and support staff, it is park policy that contractors shall not use Government employee park housing, Concessioner employee park housing, or Government/Concessioner park visitor campsites, or visitor lodging (hotels, lodges). There is no office space available in the Government-operated facilities; therefore, if necessary the contractor shall make other office and phone service arrangements. Cell phone service is dependent on the provider and is currently limited and intermittently available in the immediate vicinities of Canyon, Lake, Grant Village, Mammoth Hot Springs, and Old Faithful. Equipment available for use from Yellowstone National Park is detailed in the Work Statement.

The following conditions shall be met during the contractor's stay at the park:

· The contractor shall supply a list of all contractor employees to the Contracting Officer.

· To prevent unnatural bear attractants, no foods, garbage, drinks, trash, or food and drink containers or ice chests shall be placed outside trailers or buildings, except during actual use. Outside cooking at the sampling site is prohibited.

· Bear-proof trash cans are located throughout the park and within RV areas. All trash cans that are not of the bear-resistant design shall be located inside the trailers or buildings. Place all food and drink trash or garbage in trash cans.

· Barbecue units shall be stored in trailers and buildings and not outside when not in use.

· Bird feeders are prohibited.

· Pets are prohibited at work areas.

· At non-work areas, pets shall be on leashes or restrained at all times.

· Feeding of any wildlife is prohibited.

· Any mishandling of garbage, trash, foods, and other potential bear attractants described above will result in the responsible person, contractor, or parent receiving a citation subject to a fine or court appearance before the U.S. Magistrate and repetition of mishandling or any case of deliberate feeding will result in loss of in-park residence privileges. This is very relevant at both RV locations and at the sampling sites.

· The contractor is responsible for assigned sites and will be held responsible for mishandled trash if a specific person is not determined.

· All costs of bear management actions directly related to mishandling of garbage, trash, foods, and other potential bear attractants described above shall be at no additional cost to the Government.

· It is possible for the contractor to encounter bears at any of the sampling sites, and some sites are located in areas where bear sightings frequently occur. The contractor should take appropriate safety precautions accordingly. All contractor employees shall attend a bear orientation session presented by the park. Arrangements may be coordinated by the Contracting Officer.

· When working in the field, the contractor shall train and provide employees with bear-spray for them to carry at all times.

· Preservation of Natural Features: Confine all operations to work limits of the project. Prevent damage to natural surroundings. Restore damaged areas, repairing damaged trees and plants, at no additional expense to the Government.

Limit noise generating activities at work areas adjacent to park employee housing to the hours of 8:00 a.m. to 7:00 p.m.

Work on Saturdays, Sundays, or holidays may be performed only with prior consent of the Contracting Officer. No work shall be approved during these timeframes unless the work is directly supervised by the contractor's designated on-site manager. In cases of legitimate emergencies, consult the Contracting Officer.

Due to the hazardous nature of the work, all on-site work force members shall be a minimum of 18 years of age, no exceptions.

6. Key Personnel Professional Standards and Project Management: The prime contractor shall provide an on-site field-work manager (“field-work manager”) to be the contractor's representative and pointof-contact within the park. This field-work manager shall be directly employed by the prime contractor and shall be able to make contractual decision in the field. This field-work manager shall coordinate all site field-work and oversee any necessary or optional additional technical staff and subcontractors. The field-work crew size is at the prime contractor’s discretion. The field-work manager may be actively involved in doing the contracted field-work, but shall ultimately be responsible for: the oversight of job safety; the quality of work; the evaluation of all monitor well head conditions; the repair of damaged monitor well heads; the collection of the specified physical well data; laboratory water sample collection and preparation; the protection of collected water samples; the shipment of water samples to the laboratory; and, when the field work has been completed, participating in a virtual fieldwork close-out meeting. The field-work manager shall have demonstrated experience and familiarity with groundwater monitoring programs at a level commensurate with the work of this contract. This individual shall have worked professionally for at least 10 years as an engineer, hydrologist, geologist, or utility system (water or wastewater) operator, and hold a Bachelor of Science college degree in a related field. As part of these requirements, the quotation shall include a resume supporting their academic and professional qualifications for and experience with groundwater monitoring work and include professional references and descriptions of other similar work done. It should also document experience working on similar projects in remote dangerous bear-county wilderness conditions and familiarity with safety protocols. The field-work manager shall be full-time and continuously on site while all contracted field-work is under way for any given shift, and be properly trained and experienced in the position held. The field-work manager shall not be simultaneously employed as a subcontractor, and shall not have the added responsibility of doing other offsite duties during the field work. The on-site manager shall be a direct employee of the prime contractor during the entirety of the project.

Lastly, for the interpretation of all collected physical and sampling data, and for the generation of the final groundwater monitoring program report, conclusions, and recommendations, the prime contractor shall provide a licensed engineer, hydrologist, or geologist who holds a Bachelor of Science college degree in that field. This engineer, hydrologist, or geologist shall be directly employed by the prime contractor and shall have demonstrated experience and familiarity with groundwater monitoring programs at a level commensurate with the work of this contract. This individual may or may not be the above mentioned on-site field manager, but shall also have physically visited and observed the study areas and have worked professionally for at least 10 years. As part of these requirements, the quotation shall include a resume supporting their academic and professional qualifications for the groundwater monitoring work and include professional references and descriptions of other similar work done.

All field personnel shall be properly trained per all OSHA and EPA requirements pertaining to their specific assigned work duties. Provide any relevant certifications.

WORK STATEMENT INTRODUCTION – MONITOR WELL SAMPLING

The following information and guidelines cover general topics related to annual ground and surface water monitoring work adjacent to park wastewater system percolation ponds at Fishing Bridge, Grant Village, Old Faithful, and Madison.

1. General Background Information: A network of monitoring wells was established in 1974 near the wastewater plants at Fishing Bridge, Grant Village, Old Faithful, and Madison to study the effects of percolation pond effluent on nearby ground and surface waters in Yellowstone National Park. Ground and surface water monitoring work also began in 1974 under the supervision of the U.S. Geological Survey and was subsequently assumed by Yellowstone National Park.

The U.S.G.S Water-Resources Investigations Report 84-4356 titled "Wastewater Movement Near Four Treatment and Disposal Sites in Yellowstone National Park, Wyoming", 1986, provides a discussion of the initial monitoring well study, results, and conclusions. In brief, ground water mounds form under the percolation ponds and surcharge the natural ground water level around the pond area. The percolating effluent mixes with ground water and may form a ground water plume containing chemical constituents from the wastewater plant effluent. This plume may move down the hydraulic gradient toward groundwater-discharge areas. This study indicates the effect of percolation pond operation on nearby surface waters from 1974 to 1982. (This report is available online; if desired, it is the contractor’s responsibility to obtain a copy of this report at http://pubs.usgs.gov/wri/1984/4356/report.pdf).

The above mentioned water monitoring program has developed over the years into an annual program to comply with groundwater requirements for wastewater treatment facilities in the State of Wyoming. For the last few decades this annual monitoring has been accomplished by various contractors working for the National Park Service.

2. Park Wastewater Plant General Information: Figure 1 is a general map of Yellowstone National Park showing the four monitoring well areas. Figure 2 shows schematic layouts of the Fishing Bridge, Grant Village, Old Faithful, and Madison wastewater treatment systems.

The Fishing Bridge wastewater facility is an activated sludge system designed for an average flow of 0.6 MGD. Flow passes through two aeration ditches operated in parallel, followed by a clarifier. The clarifier supernatant effluent is pumped to two denitrification ponds then into three nearby evaporation-percolation ponds. The sludge from the clarifier is wasted to a sludge lagoon and drying beds.

The Grant Village wastewater treatment plant is an aerated lagoon system with an average design flow of 0.5 MGD. Flow passes through a primary, then a secondary aeration lagoon, and supernatant effluent is then directed into three evaporation-percolation ponds. Sludge from the system is wasted to a sludge basin and drying beds.

The Old Faithful wastewater facility is an activated sludge system designed for an average flow of 0.51 MGD. Flow passes through a pair of aeration basins, followed by a pair of clarifiers. The clarifier supernatant is pumped to four nearby evaporation-percolation ponds. The sludge from the clarifiers is wasted to a sludge basin and drying beds.

The Madison wastewater facility is an activated sludge system designed for an average flow of 0.075 MGD. Flow passes through an aeration basin, followed by a clarifier. The clarifier supernatant is pumped to three nearby evaporation-percolation ponds. The sludge from the clarifier is wasted to a sludge basin and drying beds.

3. Monitoring Well Description and Location: A network of monitoring wells, shown on Table 2, has been established adjacent to the four wastewater plants; 44 are currently being sampled. Table 3 provides historical well data for a total of 74 wells that have been constructed over time in these same areas. Forty-two holes were bored with a power-driven auger during 1974, three additional test holes were bored in 1975, and another two holes were drilled in 1976. Due to construction activities and need for additional observation wells, in 1983 eight additional wells were bored with an auger, and five additional wells were hand driven. Thirteen additional 2" walls were drilled between 1994 & 1996. In 1998 a new 2" well was drilled at Madison Junction. Figures 3, 3a, 3b, 3c, & 3d show the general overall locations of the active wells at each of the four sites; Figures 5 through 13 provide additional close-up details.

Monitoring wells generally consist of two types. Older wells consist of flexible 1.25" PVC pipe installed into augured holes except for a few hand-driven, relatively shallow, 1" diameter wells. Selected intervals of the casing were slotted in the field using a hacksaw. The upper 3 feet generally consists of galvanized steel pipe joined to the PVC well casing and capped at top to prevent contamination. Newer wells consist of locked 2.0" slotted PVC wells that have been completed under state requirements. Wells are generally staked or painted to aid in locating.

4. Surface Water Sampling Sites: In order to determine the effects of percolating effluent on water quality of nearby streams, water samples are collected from the streams. The sampling sites are located on the same banks as the percolation ponds, in flowing reaches both upstream and downstream from the ponds. A total of 14 stream sites are currently sampled; 4 at Fishing Bridge, 2 at Old Faithful, 2 at Madison, and 6 at Grant Village. Figures 3, 3a, 3b, 3c, & 3d show the general overall locations of the sample at each of the four sites; Figures 5 through 13 provide additional close-up details.

5. Well and Stream Sampling Site Identification System: Figure 4 illustrates the identification system in use for the monitoring well locations and stream sampling sites. Abbreviations and 15-digit latitude-longitude numbers identify wells. The first two letters of the abbreviations are place names near the applicable sites (such as FB for Fishing Bridge, GV for Grant Village, OF for Old Faithful, and MJ for Madison Junction). The number following is a sequential number of the wells near a particular site. A letter following the number indicates a satellite well that is located near the well having the number. For example, well GV 3A is a well about 10 feet from well GV 3, the third well at Grant Village. For stream sample sites, the letter "S" for stream following the location letters may be used. OFS-02 is the Old Faithful Stream #2 sample point. A 15-digit latitude-longitude number may also be used for stream sample sites. The U.S.G.S. uses a 15-digit number to identify the location of hydrologic data-collection sites. Such a number has been assigned to wells used in this monitoring work. The number is based on the universal system of latitude and longitude and a sequential number. The first six digits represent degrees, minutes, and seconds of north latitude; the next seven digits are degrees, minutes, and seconds of west longitude; the last two digits are a sequential number of sites having the same latitude and longitude. Although the actual site locations may differ somewhat from the latitude and longitude noted by the respective number, the numbers have not been changed so as to maintain continuity. Table 3 shows well identification numbers.

6. Program Objectives: The program objective is to evaluate the impacts of wastewater treatment plant effluent on the surface and groundwater in each sample area. The monitoring well program shall be similar to the program of previous years, which has developed into an annual program to comply with groundwater requirements for wastewater treatment facilities in the State of Wyoming. In general, wells shall be sampled annually and tested between July 5th through September 15th for chlorides, nitrate plus nitrite (as N), and Kjeldahl nitrogen.

At the same time, field measurements for groundwater elevation, temperature, conductivity, pH, and dissolved oxygen (DO) shall be taken. Included shall be other relevant items such as well sample dates, riser heights, surface elevation, depth to water, and the sediment fill conditions of each well. Depth to water and the associated groundwater elevation shall be based on a measurement taken prior to any sampling or purging so that the level has not been altered prior to the measurement.

At the conclusion of the field work, a brief closeout virtual meeting shall be held with the COR covering any unusual events or concerns. This meeting shall be held at Mammoth Hot Springs Wyoming. A written final report covering the results shall be submitted annually to Yellowstone National Park.

7. Informational Contact: Any prospective offeror with questions may contact the Contracting Officer.

WORK STATEMENT TASK DETAILS – MONITOR WELL SAMPLING

The following details are intended to indicate specific tasks that shall be done as part of the contract. These details are general guidelines--alternate methods of accomplishing the work may be used upon the approval of the Contracting Officer.

1. Applicable Standards: Where applicable the following references apply. It is the contractor’s responsibility for obtaining these documents when required.

· Wyoming Department of Environmental Quality Solid Waste Guideline #15: Groundwater Sampling Procedures, October 25, 1995.

· ASTM D 4448 (2001) Standard Guide for Sampling Groundwater Monitoring Wells.

· ASTM D 4940-99 (2004) Standard Guide for Sample Chain of Custody Procedures.

· EPA 600/4-79/020 (1983) Methods for Chemical Analysis of Water and Wastes.

· EPA EQASOP-GW00l (2010) Low Stress (Low Flow) Purging & Sampling Procedure for Collection of Groundwater Samples From Monitor Wells.

· EPA EPA/530/SW-86/055 (1986) RCRA Ground-Water Monitoring Technical Enforcement Guidance Document.

· USGS (2006) National Field Manual for the Collection of Water Quality Data. Chapter A4 Collection of Water Samples, plus other applicable chapters.

· EPA SESDPROC-201-R4 (2016) Surface Water Sampling.

2. Work Plan: Prior to commencing field work, the contractor will submit a work plan. This should include field sampling methods, sample preservation and shipping plans, selected water testing laboratory (and its certifications), any other subcontractors, laboratory test methods, quality control for all steps of the sampling, and field work safety procedures. This plan must be approved by the Contracting Officer prior to the beginning of field work.

3. General: Prior to well sampling and testing, all wells shall be located and inspected by the contractor for any necessary repairs, refer to Figures 3a through 3d and 5 through 13 for locations. Locating the wells is primarily a contractor responsibility. For difficult locations, assistance may be obtained from the Contracting Officer's Representative (COR).

In good weather, access is generally possible by 2WD pickup to within 250 feet of all monitoring sites. Exceptions include FB-7, FB-8, FB-10, FB-13, FB-14 & 14A, FB-15 & 15A, FB-17 & 17A, and the Yellowstone River sites below the Fishing Bridge; GV-6, GV-14 & 14A, and most of the GV surface water sample sites; OF-7B, OF-9, OF-10, and the Iron Springs Creek below the lagoons, and the Madison River sites below the lagoons and these sites are accessible by foot trail only.

4. Repairs: Downed trees, wildlife, and frost heaves generally damage the above-ground sections of about five percent of the monitoring wells each year. The contractor, prior to sampling and testing of each well, is responsible for minor well repairs. Minor repair shall be defined as repairing or replacing damaged well casing above the ground level and extending to two feet below ground level, and replacing any missing fittings as necessary to maintain a serviceable monitoring well with about three feet of casing extending above ground level. Other than reporting the damage to the COR, repairs required in excess of two feet below the ground are not a contractor responsibility. The contractor, at no extra cost to the government, shall provide all necessary materials, labor, and tools required for minor repairs. If a repaired well's riser height is modified, report its new value. If necessary, resurveying of well ground elevations will be done by others, reference Table 3 for assigned elevations.

5. Well Sampling: The following ground water sampling procedure has been generally used for sampling ground water wells since the beginning of the monitoring well program. Many of the monitor wells are located in sensitive remote areas without electric power and are restricted from access by vehicles. As a result, the program has traditionally been based on hand sampling using bailers. For continuity, this procedure shall follow past practices.

Remove the well cap. For newer wells, use provided key. For older wells, this usually requires two wrenches as the wells may be tightly capped. Grease, penetrating oil, or any other substance shall not be used on the threads in order to prevent possible sample contamination. Measure and record groundwater level and well depth. Calculate the quantity of water standing in the casing.

Before a representative sample can be collected, the water standing in the casing shall be removed. One of the following purging methods must be used and documented on field data / log sheets:

· Method 1: Purge by Volume

· Removal of a minimum of three (3) casing volumes of water from the well should be completed prior to collecting a groundwater sample. After this minimum amount of water has been removed, continue to purge well until specific conductance values stabilize.

· Minimum Purge Volume = 3*((Total Well Depth in feet – Depth to Water in feet) * Well Capacity)

· Method 2: Low-flow Stabilization of Parameters

· Purging of groundwater at a rate between 0.1 and 0.5 liters/minute with the pump intake set at the middle of the screen interval of the well and until all parameters have stabilized for three (3) consecutive readings after removal of one (1) casing volume, demonstrating that a representative sample was collected. Field parameters measured during purging should include: temperature (+/-3%), pH (+/-0.1), conductivity (+/-3%), oxidation-reduction potential (+/-10mv), dissolved oxygen (+/-10%), depth to water (+/-0.3 feet), and turbidity (+/-10%). Field parameters should be measured after removal of every quarter casing volume of water.

· Quarter Casing Volume = 0.25 * ((Total Well Depth in feet – Depth to Water in feet) * Well Capacity)

· For both methods, Well Capacity (gallons per foot) is based on well diameter:

· 1.25 inch well = 0.0637 gallons per foot

· 1.5 inch well = 0.0918 gallons per foot

· 2 inch well = 0.163 gallons per foot

· 4 inch well = 0.652 gallons per foot

Care must be taken to not remove water too rapidly as fine sand will readily enter most of the monitoring wells (due to soil conditions, and well construction, ground water samples are commonly turbid).

Field measurements shall be taken for ground water specific conductance, temperature, pH, and dissolved oxygen (DO) immediately upon obtaining a representative groundwater sample.

It is the contractor’s responsibility to estimate time needed for this work. Observation of past contract performance indicates that a time frame to complete all the field work has been approximately one to two weeks, depending on the weather, park traffic, crew size, well conditions, and other logistical provisions that the contractors have chosen. Note that in general, older, smaller diameter wells and deep wells (>20 feet) require more time. Reference the provided well tables for well diameters and depths.

6. Surface Water Sampling: Samples from surface water locations shall be collected at indicated locations on the applicable maps. All stream samples shall be obtained from moving water. Samples from the Yellowstone and Madison Rivers shall be collected by throwing a clean, rinsed bucket, attached to a rope, into as much of the flowing part of the stream as possible. Alternatively, a sample may be obtained by integrating vertically and horizontally as much of the flowing part of the stream into a clean rinsed bottle as can be waded safely. Samples from Iron Spring Creek shall be collected from the stream bank by integrating vertically and horizontally the flowing part of the creek into a clean rinsed bottle.

7. Sample Handling and Transport/Mailing: Immediately treat samples for laboratory analysis as recommended by the laboratory. For sample chilling, obtain necessary insulated shipping containers and cooling media. Properly date and label all samples and sample containers. The contractor shall arrange whatever shipping or mailing is needed to transport the sample to the laboratory within recommended time limits and in recommended condition (for example, within the recommended temperature range). Laboratory analysis of samples that did not arrive at the laboratory in accordance with laboratory-recommended parameters (including but not limited to temperature and holding time) is not acceptable for this contract.

Preparation and care of samples collected for laboratory chemical analyses shall follow any additional procedures recommended by the laboratory. Historically all samples have been filtered. Filtering shall be within time limits and procedures set by the laboratory.

Total Samples: Per Table 1, a total of 58 laboratory tests shall be budgeted for each of the three chemicals listed above resulting in a grand total of 174 tests.

9. Annual Report: A complete written annual draft covering all the current study-year’s work shall be submitted to Yellowstone National Park by February 15th, 2025. The NPS will provide comments by March 1st, 2025. The final report, addressing NPS comments, shall be submitted (one (1) copy of the pdf file, and one (1) 8-1/2" x 11" spiral bound copy) by March 31st, 2025. A recent partial draft sample report is provided for reference and the selected contractor shall be responsible for modeling their report accordingly. Note that no electronic word processing file of the text or exhibits will be provided by the government.

The annual final report shall describe the methods used for collecting monitor well and surface water samples and their corresponding laboratory analysis. This shall include the timing of the work and the methods, equipment, and procedures used. For each sample area, include: an interpretation of the sampling data and indicated impacts; the laboratory test result reports, laboratory test method explanations, and water sample chain-ofcustody documents; any recommended future work; a statement regarding the overall physical condition of the wells sampled and a summary of any performed well repairs; and include complete data tables and descriptive maps illustrating the results of the survey. The data tables and maps shall be of the current study-year's collected physical and chemical data. Interpretive conclusions, compliance statements, and recommendations regarding the new data shall be done in relation to the cumulative 1974 to present chemical test database. Note that the cumulative data base will be provided, in electronic Excel form, to the chosen contractor at a later date. Also, note that map illustrations are the responsibility of the chosen contractor.

For each sample area, the contractor shall generate and provide a close-up scaled base map that fills at least half of an 8-1/2" x 11" paper. This base map shall show the locations of all the labeled monitor wells in relation to the waste water treatment facility, buildings, roads, and surface water features. Figure 3 shows an example location map for each area. Also, for each sample area five (5) separate 8-1/2" x 11" isopleth data maps (superimposed on the original base map) shall be provided. Each isopleth map shall address a separate data parameter. For each sample area there shall be a separate isopleth map showing; (1) lines of equal water table elevations with the area's general direction of percolating effluent, (2) lines of equal specific conductance, (3) lines of equal nitrate plus nitrite concentration, (4) lines of equal chloride concentration, and (5) lines of equal Kjeldahl nitrogen concentration.

Included shall be an updated cumulative (1974 to present) chemical database table that includes the contractor's new chemical data results for each sample area. On the hardcopy final report, these tables shall be printed on at least tabloid (11-inch by 17-inch) sized paper. In addition to the annual hardcopy final report, the contractor shall provide an annual updated electronic Excel file of the newly tabulated chemical database. There are four (4) tables per sample site (specific conductance, nitrate plus nitrite, chloride, and Kjeldahl) for a total of sixteen (16) Tables.

In addition to the results entered by the contractor, wastewater-treatment-plant operating data for the water year in question shall be provided by the NPS by December 15 for inclusion as an appendix to the report. The contractor shall not be required to perform any data analysis or formatting of this data.

The final report for each sample year shall generally conform to the following Table of Contents; reference the previous discussions for further details and content.

INTRODUCTION Project overview including; history; well locations and descriptions; all used field sampling and testing equipment, procedures and timeline, laboratory and laboratory methods used.

MADISON Detailed discussions related to each analysis parameter and effects on groundwater, compliance issues, physical and chemical data tables, base and isopleth maps, physical conditions of the wells, observations, conclusions, and recommendations.

OLD FAITHFUL Detailed discussions related to each analysis parameter and effects on groundwater, compliance issues, physical and chemical data tables, and base and isopleth maps, physical conditions of the wells, observations, conclusions, and recommendations.

GRANT VILLAGE Detailed discussions related to each analysis parameter and effects on groundwater, compliance issues, physical and chemical data tables, base and isopleth maps, physical conditions of the wells, observations, conclusions, and recommendations.

FISHING BRIDGE Detailed discussions related to each analysis parameter and effects on groundwater, compliance issues, physical and chemical data tables, base and isopleth maps, physical conditions of the wells, observations, conclusions, and recommendations.

REFERENCES

APPENDIX Laboratory Test Reports and Chain-of Custody Documents, Daily Calibration Field Sheets, Field Notes / Log Sheets, NPS-provided Wastewater Treatment Plant Operations Information.

10. Equipment: The contractor shall supply all necessary sampling equipment and supplies, and may be requested to demonstrate proper functioning and calibration of equipment prior to use. Instruments used for taking field measurements (temperature, conductivity, pH, dissolved oxygen) shall be calibrated daily. The contractor shall use an appropriate 2-point calibration standard for conductivity and other parameters as appropriate based on the range of values observed in recent years’ data. The calibration field sheets shall be scanned an included in the appendices of the report.

Any additional necessary supplies, materials, or equipment used in the work of this contract shall be provided or replaced by the contractor at no additional expense to the Government. The contractor shall provide all vehicles, fuel, personal protective equipment, bear spray, cell phones, radios, first aid supplies, weather gear, and any other items necessary for safe sample collection and preparation.

Government-owned Equipment (located at Mammoth Hot Springs, Wyoming):

Provided Government-owned equipment such as bailers, rubber stops, and keys, etc. are stored with the Contracting Officer located in Mammoth Hot Springs, Wyoming. At the start of a sampling season’s field work it shall be the contractor’s responsibility to obtain this equipment from Mammoth and to return them back to Mammoth when all the field work has been completed.

Government-owned metal bailers may be used, at the contractor’s option, to supplement the contractor's equipment when sampling existing smaller diameter wells. Also, all necessary replacements, repairs, calibration, rubber corks, and other work needed for proper function of the government's equipment shall be the contractor's responsibility. Below is a list of these bailers, any additional sizes needed shall be provided by the contractor.

1 Lot - List of custom-made Metal Tubing Bailers for sampling small diameter wells.

11. Equipment cleaning: The contractor shall thoroughly clean the above-mentioned, government-owned equipment as needed before, during, and at the conclusion of work done under this contract. Corks shall be removed from bailers and the interiors of the bailers cleaned.

TABLE 1 – Lab-Tests Shall Be Done for the Sample Locations & Chemicals Below (44 wells +14 Stream Sites).

Fishing Bridge

TABLE 2 – Original Well Log Physical Data of the Current 44 Monitor Wells Used To Monitor Groundwater.

From Surface (Ft) Well depth From Surface (Ft) Inside Diameter of Casing (in)

Fishing Bridge

Grant Village

Old Faithful

Madison Junction

Total Wells

TABLE 3 - Historical records of 74 wells used for studying wastewater movement in Yellowstone National Park.

Total Wells