& m.m svB \ 0 ;/ UNITED STATES ENVIRONMENTAL PROTECTION AGENCY NATIONAL EXPOSURE RESEARCH LABORATORY CINCINNATI, OH 45268 July 7, 1998 Water Pollution Laboratory Performance Evaluation Study 40 (WP040) OFFICE OF RESEARCH AND DEVELOPMENT DATE: SUBJECT: FROM: Paul W. Britton, Statistician National Water Quality Assurance Programs Branch Ecological Exposure Research Division National Exposure Research Laboratory TO: Participating Laboratories '-^s7 0 I ( THRU: Raymond J. Wesselman, Chief j££vv—^ 1 - National Water: Quality Assurance Programs Branch Ecological Exposure Research Division National Exposure Research Laboratory This is the last WP study to be provided by the USEPA; consult your state or regional WP coordinator for direction regarding future WP studies. As a participant in WP040, you are herein provided sample concentrates for one or more of the following: Inorganics Set 1, Inorganics Set 2, Inorganics Set 3, Inorganics Set 4, Inorganics Set 5 and/or the Organics Set, according to the instructions given to us by the state/regional official(s) that nominated you for this study. If you did not get the ampuls you need, please used the attached sample replacement order form to obtain those samples. Inorganics Set 1 includes: demands and non-filterable residue. Inorganics Set 2 includes: nutrients and oil and grease. Inorganics Set 3 includes: trace metals #1 (aluminum, arsenic, cadmium, chromium, cobalt, copper, iron, lead, manganese, mercury, nickel, selenium, vanadium and zinc), cyanide and,total phenolics (phenols by the 4AAP method). Inorganics Set 4 includes: pH and total residual chlorine. Inorganics Set 5 includes minerals and trace metals #2 (antimony, beryllium, molybdenum, silver, strontium, thallium and titanium). Note: Ampuls from Inorganics Sets 1, 2, 3 or 4 may also be analyzed and reported to NPDES permittees for DMR-QA Study 18 purposes; the labels of these ampuls reference WP040 and DMR-QA Study 18. See the pink instructions if you need to report data to permittees using the enclosed pink "NPDES Chemistry Laboratory Data Report Form." DO NOT use the PINK forms to send data to the USEPA. Internet Address (URL) • http://www.epa.gov Recycled/Recyclable • Printed with Vegetable Oil Based Inks on Recycled Paper {Minimum 25% Postconsumer) ------- The Organics Set includes: PCBs to be diluted in a water matrix, PCBs in transformer oil, chlorinated hydrocarbon pesticides, volatile halocarbons and volatile aromatics. The PCB samples diluted in a water matrix will contain one or more of the Aroclors 1016/1242, 1232, 1248, 1254 or 1260. The PCB samples in transformer oil will contain one or more of the Aroclors 1016/1242, 1254 or 1260 and are to be diluted with solvent and directly injected on column. Since 1016 and 1242 are so similar, we do not require distinction between them. The analyst is expected to identify and measure the Aroclors present. RESULTS FOR THIS STUDY ARE DUE IN CINCINNATI ON OR BEFORE SEPTEMBER 15, 1998; EVALUATION OF RESULTS RECEIVED AFTER THIS DATE CANNOT BE GUARANTEED. FOLLOW THE GENERAL INSTRUCTIONS FOR REPORTING RESULTS, VERY CAREFULLY AND REPORT IN TERMS OF THE DILUTED, FULL-VOLUME SAMPLES. MAKE AS MANY COPIES OF THE REPORT FORM AS YOU NEED, ONE FOR YOUR RECORDS AND ONE FOR EACH COORDINATOR WITH AN INTEREST IN YOUR PERFORMANCE (SEE ATTACHED LIST*) THEN SEND THE ORIGINAL YELLOW FORM TO: Natalie Murff, P E Studies NWQAPB, EBRD, NERL, Room 525 U.S. Environmental Protection Agency 26 West M. L. King Drive Cincinnati, OH 45268 FACSIMILIE COPIES OF DATA REPORT FORMS WILL NO LONGER BE ACCEPTED. IF YOU DON'T HAVE TIME FOR US MAIL SHIPMENT, SEND YOUR DATA VIA OVERNIGHT SXPJREgg SERVICE. * Check with your regional/state coordinator to determine if they want a copy of this data for later follow-up on your performance, e.g., certification, etc. It is your responsibility to provide this information to them or anyone else with an interest in your performance. IF THERE ARE TECHNICAL QUESTIONS OR PROBLEMS, CONTACT YOUR STATE OR REGIONAL COORDINATOR (SEE ATTACHED LIST). TO ORDER REPLACEMENT SAMPLES, DO NOT CONTACT YOUR STATE OR REGIONAL COORDINATOR, BUT SUBMIT THE ATTACHED REQUEST FORM AS DIRECTED. YOUR USEPA ASSIGNED LAB CODE MS§T. BE INCLUDED IN ALL REQUESTS FOR SAMPLES (SEE LINE 1 OF THE LABEL ON PAGE 1 OF YOUR DATA REPORT FORM. We do not require copies of the background information that relates to the analytical runs from which your study data were developed. However, you should retain this information, such as the results of related QA/QC activities, records of related analytical output, etc., in your files for use during your own follow-up investigation to determine the cause of any unacceptable data. ------- Please read all instructions carefully before beginning analyses. A standardized set of instructions covering all analytes is enclosed. Separate out the appropriate sample concentrates and instructions for the analytes to be tested. A separate sample is generally prepared from each concentrate. Analyze samples as directed in the specific instructions for each group. Report results for as many of the analytes as your laboratory wishes evaluation or as directed by whomever is requiring your participation. It is important to properly and completely specify the analytical method used. If an appropriate method code is unavailable on the instructions, i.e., a "99" is to be reported, it is important to fully identify the analytical method on a sheet added to the report form. Unneeded sample concentrates should be disposed of properly or reserved for later use as internal quality control samples. For disposal purposes, see the enclosure that generally describes the contents of each ampul. For those interested in use of the concentrates as quality control samples, a list of true values and limits may be obtained from your regional or state coordinator, or through a communicating personal computer from the USEPA Office of Research and Development Electronic Bulletin Board System, after study results have been returned to the laboratories. See attached information regarding access to this system. Because the National Water Quality Assurance Programs Branch calculates all performance evaluation limits to three significant digits, we recommend that results be reported to three significant digits. Enclosures (7): Ampul Disposal Information List of Coordinators Bulletin Board Access Information Facsimilie Sample Request Form WP040 Instruction Package WP040 Data Report Form Samples as Ordered ------- AMPUL DISPOSAL INFORMATION U.S. EPA WATER POLLUTION PERFORMANCE EVALUATION SAMPLES WP Inorganic Ampul Trace Metals conc-1 Trace Metals conc-2 Minerals conc-1A Minerals conc-1 B pH-MInerals conc-2 NutrIent-1 Nutrient-2 Phenolics Demands Cyanide Residual Chlorine Residue (TSS-nonfilt) Other Solvent Contents 5%HNO3 / H2O aluminum arsenic trioxide cadmium chromium trioxide cobalt copper iron lead nitrate manganese mercuric oxide methyl mercury chloride nickel selenium dioxide vanadium pentoxide zinc oxide 5%HN03 / H20 beryllium molybdenum trioxide potassium antimony tartrate silver nitrate strontium nitrate thallium nitrate titanium H2O calcium chloride hydrochloric acid magnesium chloride H2O potassium chloride potassium sulfate sodium bicarbonate sodium chloride sodium fluoride sodium sulfate H2O hydrochloric acid potassium dihydrogen phosphate potassium hydrogen phthalate sodium hydroxide sodium borate "borax" tris(hydroxymethyl) aminomethane "THAM" H2O ammonium chloride potassium dihydrogen phosphate potassium nitrate H2O glycine sodium B-glycerolphosphate H2O 2-chlorophenol 2,4-dichlorophenol 2,4-dinitrrophenol phenol H2O glucose glutamic acid H2O potassium ferricyanide potassium hydroxide sodium hydroxide H2O sodium hypochlorite "Clorox" earth+salt solid mix infusorial earth (calcined powder) solid mix sodium chloride Chemical Eoimulm Al As2O3 Cd CrO3 Co Cu Fe Pb(N03)2 Mn HgO CHSHgCI Ni SeO2 V2O5 ZnO Be MoO3 KSbC4H4O7 AgNO3 Sr(NO3)2 TINO3 Ti CaCI2+2H20 HCI MgCI2+6H2O KCI K2SO4 NaHCOS NaCI NaF Na2SO4 HCI KH2PO4 KHC8H404 NaOH B4Na2O7+10H2O H2NC(CH2OH)3 NH4CI KH2PO4 KNO3 NH2CH2COOH (HOCH2)2CHOPO(ONa)2 +5H2O CIC6H4OH CI2H3OH (NO2)2C6H3OH C6H5OH C6H11O5CHO H02C2HNH2(CH2)2CO2H K3Fe(CN)6 KOH NaOH NaCIO (a natural clay) NaCI Max. Cone. mg/L Ampul 410 150 110 210 110 110 410 500 410 3.2 3.8 310 300 2000 260 110 150 270 160 97 130 40 41000 150 34000 7800 9100 20000 11000 910 19000 1700 6800 10000 1900 4600 6100 7600 2400 30000 19000 11000 210 270 300 310 6800 6800 230 29 29 440 Maximum percent of mix 50 99 ------- AMPUL DISPOSAL INFORMATION U.S. EPA WATER POLLUTION PERFORMANCE EVALUATION SAMPLES ORGANIC Solvent Maximum Other Ampul Contents Concentration PCB in Water #1 and 2 (Each ampul will contain one and only one of the following Aroclors:) Acetone Aroclor 1016/1242 Aroclor 1232 Aroclor 1248 Aroclor 1254 Aroclor 1260 0.015mg/mL 0.015 mg/mL 0.015mg/mL 0.015mg/mL 0.015mg/mL PCBs in Transformer Oil #1 and 2 (Each ampul will contain one and only one of the following Aroclors:) Transformer Oil Arochlor 1016/1242 Aroclor 1254 Aroclor 1260 50 mg/kg 50 mg/kg 50 mg/kg Chlorinated Hydrocarbon #1 Pesticides (Insecticides ) Acetone Aldrin Dieldrin ODD DDE DDT Heptachlor 0.015mg/mL 0.015mg/mL 0.015 mg/mL 0.015 mg/mL 0.015mg/mL 0.015mg/mL Heptachlor epoxide 0.015 mg/mL Chlorinated Hydrocarbon #2 Pesticides (Insecticides ) Acetone Chlordane 0.015 mg/mL ------- AMPUL DISPOSAL INFORMATION U.S. EPA WATER POLLUTION PERFORMANCE EVALUATION SAMPLES ORGANIC Ampul Solvent Other Contents Maximum Ampul Concentration Volatile Halocarbons Methanol 1,2-dichloromethane Chloroform 1,1,1 -tricholroethane Trichloroethene Carbon tetrachloride Tetrachloroethene Bromodichloromethane 0.375 mg/mL Dibromochloromethane 0.375 mg/mL Bromoform 0.375 mg/mL Methylene chloride 0.375 mg/mL Chlorobenzene 0.375 mg/mL 0.375 mg/mL 0.375 mg/mL 0.375 mg/mL 0.375 mg/mL 0.375 mg/mL 0.375 mg/mL Volatile Aromatics Methanol benzene Ethylbenzene Toluene 1,2-dichlorobenzene 1,3-dichlorobenzene 1,4-dichlorobenzene 0.5 mg/mL 0.5 mg/mL 0.5 mg/mL 0.5 mg/mL 0.5 mg/mL 0.5 mg/mL Oil and Grease n-Propanol Cooking Oil Paraffin Oil Glycerin 25 mg/mL 25 mg/mL 100 mg/mL ------- US EPA AND STATE QUALITY ASSURANCE COORDINATORS REGION 1 Mrs. Denise DePierro Office of Env.Measurement & Eval. US EPA, Region 1 60 Westview Street Lexington, MA 02173 Telephone: (781) 8SO-4365 Fax: (781) 860-4397 REGION 3- Mr. Charles Jones, Jr. Env. Assessment & Protection Div. US EPA, Region 3 841 Chestnut Building (3EP) Philadelphia, PA 19107 Telephone: (215) 566-2734 Fax: (215) 566-2782 REGION 5 REGION 2 Ms. Linda Mauel DESA, MAB US EPA, Region 2 2890 Woodbridge Ave., M.S. 202 Edison, NJ 08837 Telephone: (732) 321-6766 Fax: (732) 321-6616 REGION 4 Ralph Gentry, Office of Qual Assurance Science & Eccosystem Support Div. US EPA, Region 4 980 College Station Road Athens, GA 30605-2720 Telephone: (706) 355-8553 Fax: (706) 355-8803 REGION 6 Mr. Pat Churilla Safe Drinking Water Branch US EPA, Water Division, Region 5 77 West Jackson Blvd. (WD-15J) Chicago, IL 60604 Telephone: (312) 353-6175 Fax: (312) 886-6171 REGION 7 Mr. Don Johnson Management Division (6MD-HX) US EPA, Region 6 1445 Ross Ave. Dallas, TX 75202-2733 Telephone: (214) 665-8343 Fax: (214) 665-2168 REGION 8 Mr. Douglas Brune Environmental Services Division US EPA, Region 7 25 Funston Road Kansas City, KS 66115 Telephone: (913) 551-5180 Fax: (913) 551-5218 REGION 9 Mr. Rick Edmunds, TMS-Q US EPA, Region 8 999 18th Street, Suite 500 Denver, CO 80202-2466 Telephone: (303) 312-6982 Fax:- (303) 312-6067 REGION 10 Ms. Carolyn Tambwekar US EPA, Region 9 Lab, Bldg. 201 1337 S. 46th Street, P-3-1 Richmond, CA 94804 Telephone: (510) 412-2383 Fax: (510) 412-2304 MISCELLANEOUS Mr. Arthur Dan Baker Office of Environ. Assessment US EPA, Region 10 1200 Sixth Avenue (OEA-095) Seattle, WA 98101 Telephone: (206) 553-1692 Fax: (206) 553-8210 Ms. Natalie Murff US EPA, NERL, EBRD, NWQAPB 26 West M. L. King Drive, Room 525 Cincinnati, OH 45268 Telephone: (513) 569-7196 Fax: (513) 569-7115 ------- ARKANSAS CALIFORNIA Jeff Ruehr, QA Officer AR Dept. of Poll. Control & Ecology Technical Services Division 8001 National Drive Little Rock, AR 72209 Phone: (501) 682-0955 Fax: (501) 682-0798 SSLOJBABO. Judy Donaldson Lab & Radiation Services Div. CO Dept. of Public Health & Environ. 8100 Lowry Blvd. Denver, CO 80220-6928 Phone: (303) 692-3290 Fax: (303) 344-9989 FLORIDA Dr. Carl Kircher FL DHRS, Lab Services Water Certification Program 1217 Pearl Street Jacksonville, FL 32202 Phone: (904) 791-1574 Fax: (904) 791-1591 HAWAII Rendy Chow HI Dept. of Health SLD/EHASB 2725 Waimano Home Road Pearl City, HI 96782 Phone: (808) 453-6684 Fax: (808) 453-6685 Jack McKenzie KS Dept. of Health & Environment Div, of Labs and Research Forbes Field, Bldg. 740 Topeka, KS 66620-00001 Phone: (785) 296-1639 Fax: (785) 296-1641 Dr. Theodore Belsky Environ. Lab Accreditation Program CA Dept. of Health Services 2151 Berkeley Way, Annex #2 Berkeley, CA 999994704-1011 Phone: (510) 540-2800 Fax: (510) 849-5106 CONNECTICUT Nick Mascelletti Lab Standard Section CT Dept. of Health 10 Clinton Street, Box 1689 Hartford, CT 06101 Phone: (860) 509-7386 Fax: (860) 509-7378 GEORGIA Ted Jackson EPD Lab GA Dept. of Natural Resources Technology Park 455 14th Street Atlanta, GA 30318-7900 Phone: (404) 206-5246 Fax: (404) 206-5268 IOWA Stacy Freeburg University Hygienic Lab 102 Oakdale Campus Iowa City, IA 52242 Phone: (319) 355-4500 Fax: (319) 355-4555 KENTUCKY - PEP Gary Levy Div. of Water KY Dept. for Environ. Protection 14 Reilly Road Frankfort, KY 40601 Phone: (502) 564-3410 Fax: (502) 564-4245 ------- KENTUCKY - ENFORCEMENT MASSACHUSETTS John Knafl Reclamation & Enforcement — Soap Br. KY Dept. for Surface Mining #2 Hudson Hollow Complex Frankfort, KY 40601 Phone: (502) 564-2356 X712 Fax: (502) 564-5848 Ann Marie Allen MA Dept. of Environ. Protection Lawrence Experiment Station 37 Shattuck Street Lawrence, MA 01843 Phone: (508) 682-5237, X333 Fax: (508) 688-0352 MAINE MICHIGAN Michael Sodano ME Dept. of Human Services State House, Station 12 Augusta, ME 04333 Phone: (207) 287-2727 Fax: (207) 287-6832 Bob Avery MI Dept.of Environmental Quality DWRP Lab 3500 N. M. L. King Blvd..P.O.Box 30270 Lansing, MI 48906 Phone: (517) 335-9500 Fax: (517) 335-9600 MINNESOTA Al Tupy Lab Services Section MN Dept. of Health 717 Delaware Street, SE Minneapolis, MN 55440 Phone: (612) 623-5680 Fax: (612) 623-5514 MISSISSIPPI Earskin Phillips MS Dept. of Environ. Quality P.O. Box 10385 Jackson, MS 39289-0385 Phone: (601) 939-8460 Fax: (601) 939-8479 MONTANA NORTH CAROLINA Dennis Braun MT Dept. of Public Health and Human Services, Chem. Lab Cogswell Building Helena, MT 59620 Phone: (406) 444-2643 Fax: (406) 444-1802 Jim Meyer DEM/Lab Section NCDEHNR 4405 Reedy Creek Road Raleigh, NC 27601 Phone: (919) 733-3908 X243 Fax: (919) 733-6241 NORTH DAKOTA Errol Erickson ND Dept. of Health Chemistry Division 2635 East Main Street, Box 937 Bismarck, ND 58501 Phone: (701) 328-6172 Fax: (701) 328-6145 NEW HAMPSHIRE Charles Dyer NH Dept. of Environ. Services Lab Services Unit P.O. Box 95, Hazen Drive Concord, NH 03301 Phone: (603) 271-2991 ------- ^ (SEND COPY) NEW MEXICO Michael DiBalsi NJ Dept. of Environ. Protection Office of Quality Assurance 9 Ewing Street, CN-424 Trenton, NJ 08625 Phone: (609) 292-3950 Fax: (609) 777-1774 NEVADA Jack Ruckman NV Bureau of Licensure & Certification 1475 Terminal Way, Suite D Reno, NV 89502 Phone: (702) 688-2888 Pax: (702) 688-2898 Pat Hanson NM Environment Department Surface Water Quality Bureau P.O. Box 26110 Santa Fe, NM 87502 Phone: (505) 827-2799 Fax: (505) 827-0160 OKLAHOMA-(NO COPY) Anthony Bright OK Dept. of Environ. Quality State Environ. Lab 1000 N.E. Tenth Oklahoma City, OK 73117-1212 Phone: (405) 271-5240 X163 Fax: (405) 271-1836 PENNSYLVANIA Richard Scheibley PA DER, Bureau of Labs Labs Certification Program 3rd & Reilly Sts., P.O. Box 1467 Harrisburg, PA 17105-1467 Phone: (717) 783-7150 Fax: (717) 783-1502 RHODE^ISLAND Deborah Dehmel RI Dept. of Health Div. of Facilities Regulation Cannon Building, 33 Capitol Hill Providence, RI 02908 Phone: (401) 222-4526 Fax: (401) 222-3999 SOUTH DAKOTA Mike Smith SD Dept. of Health, Lab Services 500 E. Capitol Ave. Pierre, SD 57501-5093 Phone: (605) 773-3368 Fax: (605) 773-6129 SOUTH CAROLINA R. Wayne Davis Lab Certification SC Dept. of Health & Env. P.O. Box 72 State Park, SC 29147 Phone: (803) 935-6856 Fax: (803) 935-6859 TENNESSEE Charles Mickle Lab Services TN Dept. of Health 630 Ben Allen Road Nashville, TN 37247-0801 Phone: (615) 262-6354 Fax: (615) 262-6393 Control ------- US AIR FORCE-TEXAS UTAH Burt Harrison HQ AFCEE/ERC 3207 North Road e Brooks AFB, TX 78235-5357 Phone: (210) 536-5226 Fax: (210) 536-5989 Craig Odekirk Bureau of Lab Improvement Utah State Health Laboratory 46 North Medical Drive Salt Lake City, UT 84113-1105 Phone: (801) 584-8468 Fax: (801).584-8486 VIRGINIA Alicia Ordona Div. of Consolidated.Labs Commonwealth of Virginia 1 North 14th Street Richmond, VA 23219 Phone: (804) 786-3411 Fax: (804) 371-7973 VERMONT Andrew Fish VT Dept. of Environ. Conservation WW Management Division 103 S. Main Street Waterbury, VT 05676 Phone: (802) 241-3822 Fax: (802) 241-2596 WASHINGTON Stewart Lombard WA Dept. of Ecology P.O. Box 488 Manchester, WA 98353 Phone: (360) 895-4649 Fax: (360) 895-4648 WISCONSIN Mike Kvitrud WI Dept. of Natural Resources 101 South Webster Madison, WI 53707 Phone: (608) 261-8459 Fax: (608) 267-5231 ------- NOTICE TO PERFORMANCE EVALUATION STUDY PARTICIPANTS BULLETIN BOARD ACCESS INFORMATION After completion of each study, true values and limits for Performance Evaluation Studies may be obtained from your state or Regional Quality Assurance Certification Officer, NOT from NERL- Cincinnati. Or they may be obtained electronically by using a personal computer and the following information - AFTER STUDY RESULTS HAVE BEEN RETURNED TO THE COORDINATORS: There are three ways to access the WS/WP/DMR-QA results electronically. You can either dial-up or Telnet to the ORDBBS/ATTIC Electronic Bulletin Board System or point your World Wide Web browser to the ORDBBS/ATTIC web site. (1) You can access ORDBBS/ATTIC via dial-up using either a PC, Macintosh or a dumb terminal equipped with a modem (9600, 14400, 28800, 33600 bps) and appropriate communications software (e.g., CrossTalk, PROCOMM, etc.) To access ORDBBS/ATTIC via dial-up modem, set your communications software as follows: Name: ORDBBS/ATTIC Number: 513-569-7610 Baud Supported: Up to 33,600 Parity: N Data Bits: 8 Stop Bits: 1 Terminal Emulations: ANSI, VT100 Duplex: Full (2) Users may also connect to ORDBBS/ATTIC over the internet using "suitable" Telnet software and have full use of the ORDBBS/ATTIC and its features. "Suitable" means that a users Telnet client software must have two important and relevant features: a modern ANSI emulation, and the ability to transfer files. Please note you must have Telnet client software installed on your computer or accessible to you via your LAN. Use your Telnet client to connect to: cinbbs.cin.epa.gov. (3) PES page on the Agency public access server: http://www.epa.gov/ORD/dbases/PES For help using this information, call Randy Revetta at (513) 569- 7358. ------- FACSIMILIE REQUEST FOR WP040 REPLACEMENT SAMPLES DATE: TO: TERRY BUNDY, MANTECH ENVIRONMENTAL FAX (919) 406-2246 PLEASE SEND REPLACEMENT AND/OR ADDITIONAL SAMPLES FOR PE STUDY WP040. EPA ASSIGNED LAB CODE:** LABORATORY NAME: ; ; CONTACT NAME: ; LAB ADDRESS: CITY,STATE,ZIP: • TELEPHONE NUMBER: FAX NUMBER: ** SAMPLE REQUESTS WILL NOT BE PROCESSED UNLESS YOUR EPA ASSIGNED LAB CODE IS INCLUDED ON ALL REQUESTS. THIS CODE IS SHOWN ON LINE 1 OF THE LABEL ON PAGE 1 OF YOUR DATA REPORT FORM. Trace Metals #1 Trace Metals #2 Minerals #la Minerals #lb Nutrients #1 ". _ Nutrients #2 Demand PCBs in Water #1 PCBs in Water #2 PCBs in Trans.Oil #1 PCBs in Trans.Oil #2 Pesticides #1 Pesticides #2 Volatile Aromatics Volatile Halocarbons Total Cyanide N/F Residue (TSS) Oil & Grease _T.Phenolics Total Residual Chlorine •pH REASON FOR REQUEST (E.G., BROKEN IN SHIPMENT. LAB ACCIDENT, ADDITIONAL. ETC.) NOTE THAT IT MAY BE 3 WEEKS OR MORE BEFORE YOU RECEIVE THE SAMPLES YOU HAVE REQUESTED. PLEASE DO NOT CALL MANTECH UNTIL AT LEAST THREE WEEKS AFTER YOUR ORDER WAS PLACED. UNDER NO CIRCUMSTANCES CALL YOUR REGIONAL OR STATE COORDINATOR REGARDING REPLACEMENT SAMPLES. •&US. GOVERNMENT PRINTING OFFICE: 1998 -650-070/60030 ------- ------- |