A22_Amendment_1_ground_water.pdf

W81G6750894200

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The purpose of this amendment is to create a Questions and Answ ers section, removal of the Minnesota certif ication reciprocity to allow certif ication from any U.S. state, updating the tables and figures attachment, providing an example sampling protocol for use as a guide, minor changes to the scope of w ork, and extend the solicitation closing date.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 11

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 23-Feb-2016

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912ES-16-T-0002

X 9B. DATED (SEE ITEM 11)

11-Feb-2016

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer X is extended, is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

23-Feb-2016

CODE

CONTRACTING DIVISION

USACE - ST. PAUL

180 5TH STREET E SUITE 700

ST. PAUL MN 55101-1678

W912ES 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912ES-16-T-0002

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 1449 - CONTINUATION SHEET

SOLICITATION/CONTRACT FORM

The required response date/time has changed from 24-Feb-2016 11:59 PM to 26-Feb-2016 02:00 PM.

The following have been added by full text:

QUESTIONS & ANSWERS

Q1: A surface water sample from the Mississippi River is to be collected during the 2nd phase of sampling events, is a sample collected from shore acceptable or does a sample need to be collected from another location? For the river sample, is a grab sample from the surface of the river sufficient or will a sample need to be collected from depth?

A1: Shore samples from the surface are fine.

Q2: Can Pesticides be extracted with Liquid/Liquid Separation Extraction rather than Continuous Extraction?

A2: Pesticides can use liquid-liquid extraction: 8081A Organochlorine Pesticides (GC), Analysis Method: 8081A, Prep Method: 3510C

Q3: What is the range of past turbidity measurements in the monitoring wells based on the previous testing? Are the wells fully developed and producing clear non-sediment laden water?

A3: The Corps geology staff will ensure the wells are developed, turbidity has not been a problem in the past.

Q4: Will the Corps provide the cold storage space to store the 2nd set of unfiltered samples collected? Will the cold storage be located on site if provided by the Contractor or the Corps? If provided by the Contractor, is there power available for the cold storage unit(s)?

A4: No power is available to the Contractor at the site, thus the cold storage space shall be provided by the Contractor and off site.

Q5: Can real-time field parameters be monitored using a flow through system where purge water is monitored as it is removed from the well?

A5: Yes

Q6: The scope states that “the contractor may be required to analyze a blind sample for each parameter...” What will the Corps use to require or not require blind sample analysis?

A6: Blind sampling may be used as a quality assurance tool as the Government deems necessary. Any cost for blind samples will be handled as a contract modification and/or a Government purchase card.

Q7: The scope of work does not include a requirement that the contractor must contain purge water for disposal (pending results) or if purge water can immediately be evacuated to the ground surface (e.g. away from the well or into a sewer drain (non-storm)).

A7: Purged water must be contained or allowed to infiltrate into the ground at a distance away that won’t affect the test results and approved by the landowner.

Q8: Is there an order in which the monitoring wells were sampled in the past from least to highest parameter concentrations?

A8: No, the order of monitoring has not been required or analyzed in the past.

Q9: Will the Corps allow the contractor to use Alconox or another type of cleaner to ensure proper decontamination between sampling of monitoring wells? Can contamination water be disposed of at the location where completed or must all decontamination water be collected and stored for later disposal?

A9: Alconox or another cleaner is fine, but the final rinse must still be distilled and/or deionized water. Disposal at the site is not allowed.

Q10: Is an investigation derived waste management plan required for this completing this monitoring project for liquids and/or solids?

A10: The Army Corps of Engineers is not requiring a waste management plan for this contract, however it is up to the contractor to determine whether other federal, state, or local regulations may require one.

Q11: If the Corps desires to have purge and decontamination properly disposed, can the contractor assume the Corps will provide this service and pay for it since it’s not included in the scope of work?

A11: The contractor is responsible for removing any waste generated. Groundwater purge water would not be considered a waste, if the contractor adds something to the groundwater then they would be responsible for proper disposal.

Q12: Is a site specific health and safety plan required for this project?

A12: The Corps is not requiring review or submittal of the contractor’s health and safety plan, however the contractor should follow their own procedures on employee protection. Nearly all projects need to have a safety plan working in the field, using equipment, exposure to the elements, etc. Level D personal protection equipment (OSHA) has been used in previous soil and groundwater sampling at the site.

Q13: What is the access and ease of sampling for the city well?

A13: Contractors can drive right to the well.

Q14: Can the contractor take two days to complete all required monitoring for each monitoring period?

A14: Two days per round is the typical time needed, the contractor should also store the samples properly and adhere to meeting the timelines for testing.

The following have been modified:

NOTES TO OFFERORS

NOTES TO OFFEROR

PLEASE E-MAIL ALL QUESTIONS to Justin Rose, Contract Specialist, at Justin.H.Rose@USACE.Army.mil

This is a 100% Small Business Set-Aside solicitation. The Contractor’s quote shall contain sufficient information so that the U.S. Army Corps of Engineers (USACE) can determine that the vendor has a clear understanding of the requirements. The Contractor should be prepared to defend any discrepancies between the price quoted and a fair and reasonable estimate prepared by the Government.

All pricing (unit, total, subtotal, grand total, etc.) must be in whole penny amounts.

NOTE: All offerors shall submit state certification (any U.S. state) for each lab for the methods and corresponding detection limits for each constituent. State certification shall be supplied with the offeror’s quote.

It is preferred that the quote is e-mailed to:

Justin Rose, Contract Specialist, Justin.H.Rose@USACE.Army.mil

The offeror may also submit the quote by mail / courier to the following:

USACE – ST PAUL

CONTRACTING DIVISION

ATTN: JUSTIN ROSE

180 5TH STREET EAST, SUITE 700

ST. PAUL, MN 55101-1678

NAICS CODE: 541380

OFFEROR SHALL BE REGISTERED IN SAM (System for Award Management) https://www.sam.gov to include the FAR and DFARS Reps and Certs sections with the NAICS code applicable to the solicitation. For assistance with SAM, contact information is below:

SAM by GSA Hours of Operation: Monday – Friday 8am to 8pm ET, U.S. Calls 866-606-8220, Service desk website: http://www.fsd.gov/

Minnesota PTAC (Procurement Technical Assistance Center), www.mnptac.org

612-332-6332, mnptac@mnptac.org

PLEASE E-MAIL ALL QUESTIONS to Justin Rose, Contract Specialist, at Justin.H.Rose@USACE.Army.mil

SCOPE OF WORK

Scope of Work for the Collection and Analysis of Ground Water Samples for the Crats Island Dredged Material Placement Site Unloading Project at the Wabasha Gravel Pit

1. GENERAL

The St. Paul District, Army Corps of Engineers (Corps) as part of their Dredged Material Management Plan will be hydraulically transferring under a separate contract approximately 900,000 cubic yards of stockpiled dredge material from Crats Island to the Wabasha Gravel Pit. This project is located in Pool 4 of the Upper Mississippi River. See Figure 1 for the project location. Crats Island is located on the Wisconsin (Buffalo County) side of the River near RM 759. The Wabasha Gravel Pit is located on the Minnesota (Wabasha County) side of the River near RM 761.

The Corps requires the services of a Contractor to collect ground water samples for metals, PAHs, fecal coliform, pesticides, PCBs, and some other basic parameters at the Wabasha Gravel Pit. The project will be completed in 3 phases. Phase 1 involves the collection of pre-project samples (background water samples), phase 2 involves the collection of project samples (samples collected while material is being placed), and phase 3 involves the collection of post project samples (after the material placement is completed). The sample collection network will consist of 1 city well, 8 monitoring wells, 2 surface sites and up to 4 residential wells.

Figure 2 shows the approximate location of the sampling wells at the Wabasha Gravel Pit. At each well the contractor shall be responsible for the collection and analysis of water and ground water samples as described in this scope of work and the attached sampling protocol. The contractor shall also conduct in situ monitoring of water level, temperature, specific conductance, pH, dissolved oxygen (DO), and turbidity at each well.

The dredging project will begin approximately 1 July 2016. The completion date will be approximately 1 December 2017.

The phase 1 of the Groundwater Monitoring Contract shall begin no later than 1 April 2016 and phase 2 of the project should be complete by 1 December 2017. Phase 3 shall be completed by 1 June 2018.

2. OBJECTIVE

The monitoring objective is to characterize pre-project groundwater conditions in the monitoring and surrounding residential wells, monitor the range of impact of the dredging operation using specific conductance as a tracer, and ensure that residential well water quality meets State and Federal water quality criteria after the project is completed.

Analytical methods were selected on the basis of ability to detect potential contaminants at low levels. Low level data is required to determine the effects of the project. Data collected will be used to assess the effects of this and future dredged material disposal on the surrounding groundwater quality.

3. LOCATION OF THE WELLS

The approximate locations of the wells are shown on Figure 2. 1 city well, 8 monitoring wells, 2 surface sites and up to 4 residential wells will be sampled. The Contractor shall attempt the following residential wells initially:

1st - R-9 2nd - R-10 3rd – either R-3 or R-12 4th – either R-6 or R-11

The proposed residential wells to be sampled are subject to landowner approval. The Contractor is responsible for contacting the landowners prior to each sampling event so the landowner knows when and who will be on their property. Access to individual monitoring wells and/or residential tap water sources shall be agreed upon fully with the landowners and all tenants. All residential wells will be sampled from an exterior spigot that is not connected to a water treatment system (i.e. water softener). The names and addresses of the residents or a contact that is able to provide access to the residential wells will be provided to the contractor. If landowner refuses access to the property, the contractor shall document the name of the property owner, well number(s), date of the occurance, and report findings to the Government within 1 business day. A new well number may be issued to the Contractor for testing or the number of residential wells may be reduced if no other alternatives are available as the Government sees fit.

8 monitoring wells will be maintained specifically for this project. All wells are 2-inch stainless steel with locked protective casings. We can provide a key. All depth measurements are from top of 2-inch casing (not ground surface).

Well # Well Depth Water Level on

3/17/2011 1 70.3' 51.6' 2 127.5' 51.7' 3 192.3' 51.8' 4 54' 42.0' 5 approx. 50' N/A 6 49.1' 38.8' 7 39.9' 32.9' 8 54’ Not measured

4. COLLECTION OF AND NUMBER OF SAMPLES

Ground water and surface water samples will be collected by the contractor. Sampling is anticipated to begin in the Spring/Summer of 2016. Sampling is anticipated to consist of pre-project, project and post project sample rounds.

The anticipated sample collection schedule will be according to Tables 1 and 2.

The contractor will provide all suitable sample containers, equipment and technicians to collect the samples. In addition, sampling equipment shall be rinsed with distilled and/or deionized water before each new well is sampled.

Sampling will be accomplished following the attached sampling protocol. Any deviations from the protocol must be identified and approved in writing by the Contracting Officer.

All groundwater monitoring well samples will be collected according to the procedures in the attached monitoring well sampling protocol using a positive displacement and/or bladder pump(s). Other / similar pumps must be identified and approved in writing by the Contracting Officer prior to use. These protocols were derived from the 1995 “Minnesota Pollution Control Agency Ground water Sampling Guidance: Development of Sampling Plans, Protocols and Reports”. These procedures include removing a minimum of 3 well volumes prior to sample collection. The pH, specific conductance, temperature, DO, and turbidity will be recorded for each well. Sampling will be conducted after 3 well volumes have been purged and the in situ parameters have stabilized according to the attached monitoring protocol. Purging and sampling rates shall not exceed 0.5 gallons per minute. Both filtered and unfiltered samples will be collected at each well during each sampling trip. The unfiltered (whole water) samples will be placed in cold storage until project completion or as directed by the Corps.

Analysis of the filtered samples will be conducted for the monitoring well samples. All filtrations will use positive pressure through a 0.45 micron filter. Unfiltered (whole) water samples will be placed in cold storage until project completion or until directed by the Corps.

Residential well samples will be collected according to the monitoring well sampling protocol with the following modifications.

a. Unfiltered (whole water) samples will be collected and analyzed.

b. Residential samples will be obtained from outdoor taps. Water shall be run long enough to ensure that “old” water residing in the system (pipes, well, storage tank) is completely purged prior to sampling. Stabilization of in situ parameters is required.

c. Pumping volumes and times for residential wells must be recorded.

d. Inspect taps to ensure there is no aerator attached.

e. Samples will be obtained directly from the tap or connected flow cell for residential wells. Care will be taken to collect samples with minimal disturbance to the sample (minimal turbulence and aeration, low discharge rate).

Following the first sampling trip the monitoring well depths will be measured and the integrity of the wells verified by an USACE geologist.

Depth to water level shall be measured at each monitoring well during each sampling trip. Water levels are not required for the residential wells. Water depth shall be measured accurately to the nearest 0.1 foot prior to purging the well according to the procedure outlined in the sampling protocol. The measurement shall be taken from the top of the 2-inch riser pipe to the water surface.

Surface water samples will be obtained from the Mississippi River just upstream of the dredging activity and the ponding area in the disposal area. The Mississippi River sample obtained upstream of the disposal site shall be representative of the water to be utilized as dredge material carriage water before mixing with the sediments and collected only during phase 2 of the project. Ponding area samples shall be obtained at the outlet weir when outflow is present. If there is no outflow from the ponding area a sample is not required. In situ measurements of DO, pH, specific conductance, and water temperature will be obtained during sample collection. Standard sampling and laboratory protocol is required for the surface water samples. Surface water samples will be analyzed as whole water samples (no filtration).

5. REQUIREMENTS – Parameters, Methods, and Detection Limits

The contractor will analyze each sample according to Tables 1 and 2 as soon as possible after collection and within the recommended holding times for the parameters analyzed. Methods listed in Table 1 will be used unless they are outdated. Alternative procedures must be identified, justified, and approved in writing by the Contracting Officer.

Sample analyses between the laboratories practical quantitation limit (PQL) but above the method detection limit (MDL) will be reported and qualified as “estimated”. All supporting QA/QC documentation shall be included with the test results. Detection limits listed in Table 2 shall be obtained. Specific description of the analytical methods used and the detection limits attained for each parameter shall be reported with the analytical results.

The Contractor shall provide chain of custody sheets to be filled out by the sample collection teams and laboratory personnel. At a minimum, the custody sheets shall indicate project name, sample location, field observations, type of sampler used, field id number, date and time of sample, sample depth, sampling team, lab number, date received by the lab, date analyzed by the lab, and the parameters to be analyzed with their measurement units.

6. QUALITY ASSURANCE/CONTROL PROTOCOL

General

Any laboratory performing analytical work must be state certified (any U.S. state) for the parameters to be analyzed.

Potential Contractors that would do any of the analytical work will be required to have a comprehensive quality assurance/quality control program, including documentation following the procedures of EPA (1979). Normal chain of custody and other quality control procedures will be followed by the Contractor. These procedures are outlined in the sampling protocol. The procedures will conduct standard quality control procedures and report all quality control measures with the analytical results. The Corps of Engineers requires that a single parameter or group of parameters for all of the samples will be analyzed by the Contractor in a single analytical session. The quality assurance program and any analysis associated with it are considered part of the normal procedures and is not an extra cost of the contract.

Project Specific – Sample Collection

The Contractor shall provide a quality assurance/quality control protocol for sample collection similar to that provided in the Sampling Protocol. It shall describe sampling procedures and sampling equipment including pumps, bailers, and sample containers. The protocol shall also describe well purging procedures which will be done for each sampling event. Specific procedures to be used for sampling the private wells shall also be described.

Project Specific – Analytical Work

The Contractor’s quality assurance plan must include, as a minimum, the following elements:

a. SAMPLE HANDLING, CUSTODY, PRESERVATION, AND HOLDING TME – The lab shall immediately notify the Government representative of any problems concerning the sample handling, preservation, or holding times for any of the samples received. The Government will then make a determination to continue/discontinue analysis of the parameter and sample in question. Any samples not previously arranged for in the schedule or by the Government representative shall be coordinated with the Government representative to determine a course of action.

b. CALIBRATION – USACE requires reported analytes to be bracketed by an established calibration curve. Any analytes reported below the established calibration curve and above the minimum detection limit listed in Table 2 is required to be flagged as estimated. To avoid qualifications based on this requirement, the laboratory shall be required to analyze an additional low level standard at or near the minimum required detection limit or project PQL. Low level calibration points above the minimum required detection limits listed in Table 2 must be approved in writing by the Contracting Officer. In addition, target analytes detected above the upper calibration standard shall be diluted and run again. If for some reason this is not possible the original value shall be reported as estimated. Problems concerning achieving the PQL shall be immediately reported to the Corps representative.

c. PRECISION – Replicate Samples – The Contractor shall conduct replicate analyses on each parameter for a minimum of 10% of the water samples analyzed. The contractor will compute the relative percent difference (RPD) using equation 1 and report it with the data. If sufficient replicates are taken from a particular matrix (minimum of 8) precision may be estimated as the relative standard deviation (RSD) or Coefficient of variation (CV). Samples selected for replicate analysis will be distributed equally among the different types of samples encountered.

Equation 1 RPD = [(|X1-X2|)/((X1+X2)/2)]*100

d. REAGENT OR METHOD BLANKS – The Contractor shall run a minimum of one reagent blank every time samples are analyzed. The reagent blank is to be interspersed with the regular samples; it is not to be analyzed separately. Data for each reagent blank will be reported along with other quality control data for any given analysis.

e. SPIKED SAMPLES – For each parameter possible, at least one sample will be spiked with a known concentration and analyzed during normal analytical procedure. Percent recovery will then be computed and reported with the rest of the data.

f. BLIND SAMPLES – The contractor may be required to analyze a blind sample for each parameter using normal analytical procedures and shall report the results for evaluation. Blind samples will constitute less than 10% of the total sample analysis.

g. UNINTERRUPTED PARAMETER ANALYSIS – The Corps requires that a single parameter or set of parameters for a group of samples be analyzed by the Contractor during the same analytical session. All analyses for parameters in samples, reagent blanks, and blind samples will be conducted during the same analytical session. To clarify: once the instrument or procedure is set and running for a given parameter or set of parameters, all samples and their associated controls will be run. The instrument or procedure will not be stopped, except for an emergency, until all analyses for that parameter are completed on all samples. If the analytical sequence is interrupted or delayed, upon resumption all blanks, spiked samples, and the remaining unknowns will be run.

h. SAMPLE STORAGE – The Contractor must state the maximum storage time that will occur between sample collection and analysis.

i. PERFORMANCE CRITERIA – The Corps expects the following performance for QA/QC.

Replicate samples using the relative percent difference (RPD)

Plus/minus 10% for values >5 X detection limit (DL)

Plus/Minus DL for values < 5 X DL

Method Blanks

The concentration of all target analytes in the blank shall be below the method detection limit (MDL) or less than 5% of the measured concentration in the sample. If the blank does not meet the acceptance criteria, the source of contamination shall be investigated and appropriate corrective action taken and documented. Investigation includes an evaluation of the data to determine the effect and extent of the contamination on the sample results.

Corrective actions may include reanalysis of the blank and/or repreparation of the blank and all associated samples at no expense to the Government. Sample results shall not be corrected for blank contamination.

Spiked Samples

Acceptable accuracy on spiked sample analyses is +/- 2 standard deviations of the mean value. If more than 5% of the spiked sample analyses exceed +/- 2 standard deviations of the mean value, the Corps may request that quality control be checked or may order another laboratory inspection. In addition, if spiked sample analyses exceed +/- 3 standard deviations, the data for the particular set of samples will be rejected by the Corps. The Contractor will be required to identify and correct the analytical problem and rerun the analysis, including sample digestion, at the Contractor’s expense. The Corps expects the coefficient of variation on replicate analyses to be less than 10% for most parameters.

Blind Samples

Blind sample results will be compared to the certified known value. If the contractor’s performance is unsatisfactory, the Corps will not accept the analytical data until the contractor demonstrates acceptable performance. Acceptable performance on blind samples follows the limits stated for drinking water analysis in the

SDWA.

The cost of these QA/QC procedures will be included in the per sample quoted price (the replicate, spike, and blank samples will not be a separate payment item).

7. PRODUCTS

Products include:

1) Plan for the sampling protocol, QA, and QC (submitted after award, at least 7 calendar days prior to sampling, and approved by USACE prior to sampling);

2) Results after each sampling trip completed in accordance with paragraph 8 below;

3) Final Report to include supporting QA/QC data:

Final Report Details:

The Contractor will provide a final written report (Sampling and Analysis report) including the analytical results, specific description of analytical methods, description of field and laboratory quality control and quality assurance measures, description of any unusual observations about the tests, and any other relevant information. The

Contractor shall also provide the analytical results and notes on unusual observations using an EXCEL spreadsheet, delimited digital format, CSV, etc. The Contractor will highlight results in the report and spreadsheet that are detected above EPA drinking water standards. The written narrative of the report will summarize the project’s monitoring program (including maps and drawings of the sampling locations), review the analytical results for each sample location and discuss any data trends or results that are a probable consequence of the railroad ties or the pumping of dredge material. When possible, statistical analysis should be used to differentiate project influenced results versus background levels. In case additional analyses are requested, the Contractor shall retain any remaining samples until all products have been approved by the Corps.

Minimum data reporting elements include the following:

a. field sample identification number,

b. laboratory sample number,

c. date of sample(s) collection,

d. date of sample(s) extraction/digestion/analysis,

e. batch number(s),

f. dilution factors,

g. analysis parameter(s),

h. analytical method,

i. parameter value or result,

j. concentration units,

k. reporting and minimum detection limits,

l. all data qualifiers assigned and any special problems associated with an analysis,

m. sample description including preservation,

n. final chain of custody sheets,

o. and all supporting QA/QC data.**

** QA/QC data shall include calibration data including initial calibration curve data and continuing calibration verification data including standards and blanks and acceptance ranges. All method blanks, laboratory control samples, duplicates, spikes, and other method specific QC samples which may have been run, even on samples other than this project, which were run. Data must clearly indicate which batch data refers to it.

8. COMPLETION AND DELIVERY

The Contractor shall complete the analyses (using an EXCEL spreadsheet, delimited digital format, CSV, etc.) and send the results for each sampling trip to the Government Point of Contact within 20 business days after the samples are collected by the Contractor on-site. The results of in situ measurements made at the wells (pH, water temperature, water level, specific conductance) shall be provided to the Government Point of Contact within 2 business days of sample collection.

The final (Sampling and Analysis) report will be delivered to the Government Point of Contact within 50 calendar days after the final post project sample has been collected.

Attachments:

Table 1. Sampling Schedule Table 2. Water Analysis Figure 1. Project Location Figure 2. Location of Wells

(End of Summary of Changes)