CATALOG DOCUMENTATION EMAP-ESTUARIES PROGRAM LEVEL DATABASE 1993 DELAWARE AND MARYLAND COASTAL BAYS STATION LOCATION AND SAMPLING VISIT INFORMATION TABLE OF CONTENTS 1. DATA SET IDENTIFICATION 2. INVESTIGATOR INFORMATION 3. DATA SET ABSTRACT 4. OBJECTIVES AND INTRODUCTION 5. DATA ACQUISITION AND PROCESSING METHODS 6. DATA MANIPULATIONS 7. DATA DESCRIPTION 8. GEOGRAPHIC AND SPATIAL INFORMATION 9. QUALITY CONTROL/QUALITY ASSURANCE 10. DATA ACCESS 11. REFERENCES 12. TABLE OF ACRONYMS 13. PERSONNEL INFORMATION 1. DATA SET IDENTIFICATION 1.1 Title of Catalog document Coastal Bays Database 1993 Delaware and Maryland Bays Station Location and Sampling Visit Information 1.2 Author of the Catalog entry Melissa Hughes, OAO Corporation 1.3 Catalog revision date November 17, 1999 1.4 Data set names Station Location Data Sampling Visit Information 1.5 Task Group Mid-Atlantic Integration and Assessment (MAIA) 1.6 Data set identification code 200 1.7 Version 001 1.8 Requested Acknowledgment If you plan to publish these data in any way, EPA requires a standard statement for work it has supported: "Although the data described in this article have been funded wholly or in part by the U. S. Environmental Protection Agency through its EMAP-Estuaries Program, it has not been subjected to Agency review, and therefore does not necessarily reflect the views of the Agency and no official endorsement should be inferred." 2. INVESTIGATOR INFORMATION 2.1 Principal Investigator Dr. Frederick W. Kutz U.S. Environmental Protection Agency - Region III 2.2. Investigation Participant-Sample Collection Janis Chaillou Versar, Inc. Steven Weisberg Versar, Inc. 3. DATA SET ABSTRACT 3.1 Abstract of the Data Set The Station Location and Sampling Visit data sets contain geographic and sampling visit information related to stations in the Delaware and Maryland Coastal Bays sampling region. Stations were selected using a stratified random design. The assigned stratum is given, as well as the geographic coordinates of a site. Some sites were visited more than once; date, station depth and visit number were also recorded. 3.2 Keywords for the Data Set sampling sites, latitude, longitude, geographic coordinates, station depth 4. OBJECTIVES AND INTRODUCTION 4.1 Program Objective The objective of the Coastal Bays Joint Assessment was to assess the ecological condition of the Delaware and Maryland coastal bays, compare the current ecological condition of the bays with their historical condition and to evaluate indicators and sampling design elements that can be used to direct future monitoring activities in the system. 4.2 Data Set Objective The Station Location and Sampling Visits data sets provide geographical and visit information on the sites sampled in the Delaware and Maryland Coastal Bays. 4.3 Data Set Background Discussion The Coastal Bays Joint Assessment was based on methods used in the EMAP-Estuaries program. A probability-based sampling design ensured an unbiased estimation of condition and that all areas within the system were potentially subject to sampling. The probability based sampling design also allowed calculation of confidence intervals around estimates of condition. 4.4 Summary of Data Set Parameters Station Location and Sampling Visit data set values were based on the data collected at at the time of sampling, i.e., geographic coordinates, depth. 5. DATA ACQUISITION AND PROCESSING METHODS 5.1 Data Acquisition 5.1.1 Sampling Objective Locate sampling sites using a Global Positioning System (GPS). 5.1.2 Sample Collection Methods Summary SAMPLING DESIGN Two hundred sites were sampled, 25 in each of 4 sampling strata (upper Indian River, Trappe Creek/Newport Bay, St. Marin River and dead-end canals) and 50 in 2 other sampling strata (all remaining areas within Maryland's coastal bays and all remaining areas within Delaware's coastal bays). Sites (except dead-end canals) were selected by: 1) enhancing the EMAP hexagonal grid (Overton, et al., 1990) and randomly selecting the appropriate number of grid cells for each stratum; then 2) selecting a random site from within each cell. A list frame of the dead-end canals was developed and 25 canals were randomly selected. A site was randomly selected from within each canal. 5.1.3 Sampling Start Date 12 July 1993 5.1.4 Sampling End Date 30 September 1993 5.1.5 Platform Sampling was conducted from 7 m (21 ft) Privateer equipped with an electric winch with a 12-foot boom. 5.1.6 Sampling Gear Global Positioning System (GPS) 5.1.7 Manufacturer of Sampling Equipment NA 5.1.8 Key Variables Date and time were recorded at the site visit. The latitude and longitude of the station location were determined at the time of sampling. According to EPA Locational Policy: 1. Latitude is always presented before longitude; 2. Latitude and longitude are recorded as decimal degrees. The specific method, Loran or GPS, of determining the latitude and longitude is also recorded. 5.1.9 Collection Method Calibration NA 5.1.10 Sample Collection Quality Control Sampling sites were located using a GPS receiver. Dead reckoning was used to locate sites when signal interference or equipment malfunction prevented reliable performance of the GPS receiver. Obvious landmarks, channel markers and other fixed structures were noted to identify the site location whenever dead reckoning was used. 5.1.11 Sample Collection Method Reference NA 5.2 Data Preparation and Sample Processing Not applicable 6. DATA MANIPULATIONS Most values in the Stations data set were assigned, based on geographic location. 6.1 Name of new or modified values NA 6.2 Data Manipulation Description NA 6.3 Data Manipulation Examples Not applicable. 7. DATA DESCRIPTION 7.1 Description of Parameters 7.1.1 Station Location Attribute Name Format Description --------------------------------------------------------------------------------------------------- Province VARCHAR2(4) Large biogeographic area in which sampling occurred Resource Name VARCHAR2(20) Program Conducting Sampling Data Group VARCHAR2(4) Data Group Conducting Sampling Sampling Year NUMBER(4.0) Year During Which Data Were Collected EPA Region VARCHAR2(2) EPA Region Code of Station Location State VARCHAR2(2) Code for State Water Body System VARCHAR2(6) Large Water Body Code of Station Location Estuary Name VARCHAR2(50) Small Water Body Where Station Located Station Name VARCHAR2(20) The Station Identifier Latitude Decimal Degrees NUMBER(9.3) Decimal Degrees of Latitude Longitude Decimal Degrees NUMBER(9.3) Decimal Degrees of Longitude (negative) Station Statistical Area NUMBER(7.2) Statistical Area (sq. km.) of Station Water Body Strata VARCHAR2(6) Design Strata:Large/Small/Tidal River Sample Collection Code VARCHAR2(18) Station Class-Determines Sampling Regime EMAP Station Name VARCHAR2(20) EMAP Station Name EMAP River Segment VARCHAR2(20) EMAP River Segment Number (SPUNIT) MAIA Station Name VARCHAR2(20) MAIA Station Code --------------------------------------------------------------------------------------------------- 7.1.2 Sampling Visit Attribute Name Format Description -------------------------------------------------------------------------------------------- Data Group VARCHAR2(4) Data Group Conducting Sampling Sampling Year NUMBER(4.0) Year During Which Data Were Collected Station Name VARCHAR2(20) The Station Identifier Sampling Collection Date DATE Date of Sample Collection Visit Number NUMBER(2.0) Number of Visit to this Station Station Depth NUMBER(5.1) Depth of Water at Station at Time of Sampling Depth Units VARCHAR2(15) Units of depth -------------------------------------------------------------------------------------------- 7.1.6 Precision to which values are reported The precision is indicated by the attribute format reported under 7.1 7.1.7 Minimum value in data set Visit Number 1 Latitude Decimal Degrees 38.020 Longitude Decimal Degrees -75.365 Station Depth 0.3 7.1.8 Maximum value in Data Set Visit Number 4 Latitude Decimal Degrees 38.701 Longitude Decimal Degrees -75.057 Station Depth 3.7 7.2 Data Record Example 7.2.1 Column Names for Example Records 7.2.2 Example Data Records 7.2.2.1 Station Location Province Resource Name Data Group Sampling Year VA Region 3 DEMD 1993 VA Region 3 DEMD 1993 VA Region 3 DEMD 1993 EPA Region State Water Body System Estuary Name Station Name 3 DE Upper Indian River Upper Indian River 101 3 DE Upper Indian River Upper Indian River 102 3 DE Upper Indian River Upper Indian River 105 Latitude Decimal Degrees Longitude Decimal Degrees Station Statistical Area 38.588 -75.25 0.53 38.586 -75.273 0.53 38.584 -75.235 0.53 Water Body Strata Sample Collection Code Small Estuary or Tidal River Random Small Estuary or Tidal River Random Small Estuary or Tidal River Random EMAP Station Name EMAP River Segment MAIA Station Name 7.2.2.2 Sampling Visit Data Group Sampling Year Station Name Sampling Collection Date DEMD 1993 101 10-Aug-93 DEMD 1993 102 10-Aug-93 DEMD 1993 105 15-Jul-93 DEMD 1993 105 30-Sep-93 Visit Number Station Depth Depth Units 1 1.2 m 1 0.9 m 1 1.2 m 2 1.2 m 8. GEOGRAPHIC AND SPATIAL INFORMATION 8.1 Minimum Longitude -75 Degrees 17 Minutes 4.80 Decimal Seconds 8.2 Maximum Longitude -75 Degrees 04 Minutes 18.60 Decimal Seconds 8.3 Minimum Latitude 33 Degrees 49 Minutes 54.60 Decimal Seconds 8.4 Maximum Latitude 38 Degrees 38 Minutes 33.00 Decimal Seconds 8.5 Name of area or region Delaware and Maryland Coastal Bays Stations were located in coastal bays along the East Coast of the United States in the States of Delaware and Maryland. Four major subsystems included Rehobeth Bay, Indian River Bay, Assawoman Bay and Chincoteague Bay. Areas of interest included Indian River, St. Martin River, Trappe Creek and artificial lagoons. 9. QUALITY CONTROL AND QUALITY ASSURANCE 9.1 Data Quality Objectives NA 9.2 Data Quality Assurance Procedures NA 10. DATA ACCESS 10.1 Data Access Procedures Data can be downloaded from the WWW server. 10.2 Data Access Restrictions Data can only be accessed from the WWW server. 10.3 Data Access Contact Persons Dr. Frederick W. Kutz U.S. EPA Region III (410)573-2742 (Tele) 10.4 Data Set Format Data can be downloaded in several formats from the web site. 10.5 Information Concerning Anonymous FTP Data cannot be accessed via ftp. 10.6 Information Concerning WWW Data can be downloaded from the WWW servers. 10.7 EMAP CD-ROM Containing the Data Set Data are not available on CD-ROM 11. REFERENCES Chaillou, J.C., S.B. Weisberg, F.W. Kutz, T.E. DeMoss, L. Mangiaracina, R. Magnien, R. Eskin, J. Maxted, K. Price and J.K. Summers. 1996. Assessment of the Ecological Condition of the Delaware and Maryland Coastal Bays. U.S. Environmental Protection Agency. Prepared by Versar, Inc., Columbia, MD. Holland, A.F., ed. 1990. Near Coastal Program Plan for 1990: Estuaries. EPA 600/4-900/033. Narragansett, RI: U.S. Environmental Protection Agency, NHEERL-AED, Office of Research and Development. Overton, W. S., 1989. Design report of the Environmental Monitoring and Assessment Program. U.S. EPA, NHEERL-AED, Corvallis, OR. Overton, W.S., D.L. Stevens and D. White, 1991. Design report for EMAP. Document in review. U.S. EPA, NHEERL-AED, Corvallis, OR. Strobel, C. J., 1990. Environmental Monitoring and Assessment Program - Near Coastal Component: 1990 Demonstration Project, Field Operations Manual. U.S. EPA NHEERL-AED. Narragansett, RI. October 1990. USEPA, 1989. Draft EPA Locational Data Policy. U. S. EPA, Washington, D. C. Valente, R., C.J. Strobel, J.E. Pollard, K.M. Peres, T.C. Chang and J. Rosen. 1990. Quality Assurance Project Plan for EMAP Near Coastal: 1990 Demonstration Project. U.S. Environmental Protection Agency. NHEERL-AED. Narragansett, RI. Weisberg, S.B., J.B. Frithsen, A.F. Holland, J.F. Paul, K.J. Scott, J.K. Summers, H.T. Wilson, R. Valente, D.G. Heimbuch, J. Gerritsen, S.C. Schimmel and R.W. Latimer, 1993. EMAP- Estuaries Virginian Province 1990 Demonstration Project Report. EPA 620/R-93/006. U.S. Environmental Protection Agency, NHEERL-AED, Narragansett, RI 02882-1197. 12. TABLE OF ACRONYMS 13. PERSONNEL INFORMATION Principal Investigator Dr. Frederick W. Kutz U.S. Environmental Protection Agency - Region III 201 Defense Highway - Suite 200 Annapolis, Maryland 21401 kutz.rick@epa.gov (410) 573-2742 (Tele) Investigators-Sample Processing/Collection Janis C. Chaillou Dr. Steven B. Weisberg Versar, Inc. 9200 Rumsey Road Columbia, MD 21045-1934 (410)964-9200 (Tel.) (410)964-5156 (FAX) chailloujan@versar.com Data Librarian, EMAP-IM Melissa M. Hughes OAO Corporation U.S. EPA NHEERL-AED 27 Tarzwell Drive Narragansett, RI 02882-1197 (401) 782-3184 (Tel.) (401) 782-3030 (FAX) hughes.melissa@epa.gov