1977 Reference Survey Report Sediment Chemistry

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
Southern California Coastal Water Research Project (SCCWRP)
Publication_Date: 20000801
Publication_Time: 20000402
Title: 1977 Reference Survey Report Sediment Chemistry
Edition: 1.0
Publication_Information:
Publication_Place: Costa Mesa, California
Publisher:
Southern California Coastal Water Research Project (SCCWRP)
Online_Linkage:
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Description:
Abstract:
All wastewater monitoring programs assess the environmental situation in the discharge area by comparing it to the situation where there is no discharge. Thus the selection of the reference or control stations is of critical importance in evaluating effects: Control stations must be as similar as possible to the area being studied except that they are not exposed to outfall materials. The Project has encountered the problem of selecting proper control sites in designing its surveys of southern California discharge areas. We considered using sites off the Channel Islands but rejected them because they are not oceanographically or biologically comparable to mainland sites. We also looked at data from the control sites used in the past by various dischargers and found that some of these were in areas influenced' by the outfalls being investigated and consequently gave invalid reference information. In some monitoring surveys, a single reference station and a single set of measurements have been used as the basis for determining the natural or background conditions for an outfall site. Yet careful analysis of many samples reveals that chemical and biological conditions vary with water depth and type of bottom material and can differ by as much as a factor of 10, even in areas not influenced by man. Plainly, no single control station or set of measurements is valid for reference purposes. Numerous benthic monitoring surveys, designed to assess the effects of existing or future discharges, have been taken on the southern California mainland shelf since 1956. While such surveys have provided much new information on the abundance and diversity of thousands of species of bottom organisms and fishes, and on the levels of pollutants in sediments around outfalls, few have provided a data base that would permit the identification of control sites, or areas where background conditions exist. An outstanding exception is the mainland shelf survey produced by the California State Water Resources Control Board and conducted some 20 years ago by the Allan Hancock Foundation, University of Southern California (California State Water Resources Control Board 1967; Jones 1969). That survey provided useful information on conditions at that time; however, we do not know if the results are representative today. Moreover, the previous survey did not provide data on sediment pollutant concentrations or trawl-caught fish and invertebrate populations--two types of information that are needed at present, particularly for rural areas of this coast. Accordingly, in 1977, the Coastal Water Research Project sponsored a new survey of the mainland shelf from Point Conception to the United States/Mexico border. The goal of the survey was to identify possible control areas for contrasting with existing municipal wastewater discharge sites and to define the apparent normal variations in the chemistry and biology of the fine sediment areas covering much of the mainland shelf.
Purpose:
We now believe we have identified 29 locations, the combined information from which can be used as control data for one depth--60 meters. We chose to limit this survey to the single depth because this is the depth of discharge of the largest municipal wastewater treatment plants along the coast -and because discharged materials tend to drift along depth contours. Details on the methods and results of the survey are given in the following sections.
Supplemental_Information:
Grabs, Trawls, and Water Quality casts were conducted at each of the stations to yield Benthic infauna, Sediment Chemistry, Trawl Fish, Macro Invertebrate, water column characterization at one meter increments from surface to bottom, and sediment grain size data. These data types can be aggregated using the StationID variable in each table. Between 28 April and 9 August 1977, 70 benthic grab samples and 53 trawl samples were taken at 71 stations between Point Conception and the U.S./Mexico border. The stations were located at intervals of approximately 10 km along the 360 km of coastline at depths of approximately 60 meters. In certain areas near the major municipal wastewater outfalls, stations were more closely spaced to delineate the expected outfall effects. Station locations are given in tblStations. Position on station was determined through the combined use of dead reckoning, sightings off headlands, radar fixes, and depth measurements from a recording fathometer. We have estimated that the inaccuracy of positioning do not exceed 100 meters. The vessels used during the survey are as follows: 1. M/V Marine Surveyor, Los Angeles City, John Keller, Skipper. 2. M/V Fury II, Orange County Department of Education, John Haas, Skipper~ 3. M/V Monitor II, San Diego City, Susan Hamilton, director of collecting efforts. 4. M/V Enchanter IV, Fred Munson, Owner/Operator. 5. R/V Sea-S-Dee, Los Angeles County Sanitation Districts, Rusty Shields, Skipper. 6. R/V Van Tuna, Occidental College, Elden McAllicher, Operator.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19770801
Ending_Date: 19770831
Currentness_Reference: ground condition
Status:
Progress: COMPLETE
Maintenance_and_Update_Frequency: None Planned
Spatial_Domain:
Description_of_Geographic_Extent: Southern California Bight
Bounding_Coordinates:
West_Bounding_Coordinate: -120.4458
East_Bounding_Coordinate: -117.265
North_Bounding_Coordinate: 34.44111
South_Bounding_Coordinate: 32.55833
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Sediment Chemistry
Theme_Keyword: PCB
Theme_Keyword: Metal
Access_Constraints: None
Use_Constraints: None
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Information Systems Manager or Information Manager
Contact_Address:
Address_Type: physical address
Address: 3535 Harbor Blvd., Suite 110
City: Costa Mesa
State_or_Province: California
Postal_Code: 92626
Country: USA
Contact_Voice_Telephone: 714.755.3200
Contact_Facsimile_Telephone: 714.438.1016
Contact_Electronic_Mail_Address: im_contact@sccwrp.org
Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday
Contact_Instructions: email preferred
Data_Set_Credit: SCCWRP
Native_Data_Set_Environment: Microsoft Access Version 2000

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: Coordinates accurate to within 100 ft
Logical_Consistency_Report:
The tables may be related by the StationID field or the SampleID field where applicable.
Completeness_Report:
No records for the following stations StationID R24-60 R34-60 R40-60 R65-60 R66-60 R67-60
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The station locations were determined using a hand held Magellan GPS and are accurate with in a radius of 100 ft
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: The depths expressed are accurate to 0.1 meters.
Lineage:
Methodology:
Methodology_Type: Field
Methodology_Description:
A single Van Veen grab sample was collected at each station and subsampled aboard ship at depths of 2 and 5 cm for various physical and chemical analyses. Three subsamples were collected from each depth in plastic containers for later analysis of trace metals content, physical characteristics, and content of organic material. One subsample was taken in a foil-capped glass container at each depth for later analysis for chlorinated hydrocarbons. All samples were quickly frozen on dry ice at sea; they were then returned to the laboratory and stored in freezers until they could be analyzed.
Methodology_Type: Lab
Methodology_Description:
The percent volatile solids in the upper 2 and 5 cm of sediments at a station was determined by analyzing well-mixed and pestle-ground sediments from a single subsample from each depth. Any large or conspicuous animal and shell fragments were removed from the samples prior to testing. The values for the two depths were compared, and a decision was made to use the 2-cm samples for the remaining physical/chemical analyses. All the remaining physical and chemical parameters, except chlorinated hydrocarbon content and sediment grain size, were determined by analysis of a single, well-mixed subsample with conspicuous animals and shell debris removed. This subsample came from one of the upper 2-cm samples from the grab. All the remaining subsamples were archived for future research. Chlorinated hydrocarbons were measured on the 2-cm sample retained in a foil-capped glass container. The sediment grain size determinations were made on an aliquot of the samples taken prior to mixing and grinding. Analytical procedures are described in the following subsections, which were written by the individuals responsible for the analyses. Trace Metal Analysis (Tsu-Kai Jan). Sediment samples were analyzed for silver, cadmium, chromium, copper, nickel, lead, and zinc. A wet-acid method was used to digest the samples. This moderate digestion procedure extracts most of the metals usually considered to be biologically available, such as those associated with organic matter and sulfides and oxides and those adsorbed on the surface of solids. Metals associated with the silicate minerals (part of the lithogenous fraction) essentially are not biologically available and are not extracted by this procedure. To prepare samples, approximately 0.5 to 2.0 grams of well-mixed sediment are weighed into a glass-covered, 150-ml beaker and dried in an electric oven at 750C for 48 hours. A nitric acid solution (20 ml of 1:1) is added to the dried samples, which are then digested on a hotplate until only about 3 ml of liquid remains; this procedure is then repeated. Then 20 ml of distilled deionized water and 2 ml of concentrated hydrochloric acid are added, and the mixture is boiled for 20 minutes. The mixture is then filtered through an acid-washed Whatman No. 40 filter paper (8-micron pore size), and the resulting filtrate is diluted with distilled, deionized water to 50 ml. Analytical blanks are prepared along with the sediment samples, using the same procedures and reagents. Samples are analyzed on a Varian-Techtron atomic absorption spectrophotometer (Model AA-6) equipped with a simultaneous background corrector (Model BC-6) , a premix type of burner, and a carbon-rod atomizer (Model 63). When a sample has a relatively high metals content, the diluted filtrate is aspirated into an air/acetylene flame. The concentrations of trace metals are then determined by comparing the results against known standards. A previous study of matrix interferences in flame atomic absorption revealed no significant interferences in detection of the seven elements in question, given a sample size of up to 2 grams. The detection limits for the metals using this method are as follows: Metal(mg/g) Silver 0.8 Nickel 1.8 Cadmium 0.4 Lead 3.0 Chromium 1.5 Zinc 0.3 Copper 1.4 If a metal is present in concentrations below the flame detection limit, a flameless method must be used in the analysis; with the flameless procedure, 2.5 ml of treated solution are injected into a graphite furnace. The silver, cadmium, and lead concentrations in a small number of samples from this survey were determined using this method. Matrix interferences are checked, and compensations are made by running separate spiked samples. The detection limits for silver, cadmium, and lead with the flameless method are 7.0, 3.0, and 33 ng/gram, respectively. The conditions of the spectro-photometer during the analyses described here are given in Table 5. All reagents are analytical reagent-grade, the water is deionized and distilled, and all standards are prepared by the dilution of 1,000-ppm stock solutions. The glassware and plastic containers are cleaned by being soaked in 6 percent nitric acid solution for more than 24 hours and then rinsed in distilled, deionized water. Chlorinated Hydrocarbon Analysis (Theadore Heesen). Hexane extraction and Florisil column clean-up procedures were used during this study to produce samples for pesticide analysis; an additional saponification step was used to produce a sample for PCB analysis. The sediment samples are first dried in an electric oven at 600C for 24 hours. Then 20 to 40 grams of sediment are weighed into a cellulose Soxhlet thimble. The Soxhlet extraction apparatus is charged with 250 ml of hexane and mixed thoroughly for a period of 18 hours; the extract is then reduced in volume to about 25 ml using a rotary evaporator. Florisil (MCB FX284) that had been activated 1 for 4 hours at 7000C and stored under hexane is used for clean-up purposes. A glass column (22 mm, IC) with a fritted glass plug is filled to a height of 7.6 cm with the Florisil slurry, and the slurry is covered with 1.3 cm of granular anhydrous sodium sulfate. About 40 ml of sample are then placed on the Florisil column and eluted with 45 ml of 6 percent (volumel volume) diethyl ether in hexane. At this point, a part of the extract is set aside for pesticide analysis. One-halfof the sample extract is placed in an Erlenmeyer flask with 50 ml of a saponification mixture made by placing 5 grams of KOH dissolved in a slight amount of water and then diluting the mixture to 50 ml with ethanol. A three-ball Snyder condenser is placed on the flask, and the mixture is refluxed for 30 minutes on a steam table. The mixture is then placed in a separatory funnel with 50 ml of hexane and 100 ml of deionized water and shaken for 5 minutes. The hexane portion is washed twice more with two separate l00-ml portions of deionized water. This extract is then analyzed for PCB' 5. The sample extracts are injected into a Tracor MT 220 gas chromatograph equipped with nickel-63 detectors. The column is 2 mm, ID, by 1.8 meters and is packed with 1.5 percent Ov-17 and 1.95 Percent QF-l on Gas Chrom Q (Applied Science Laboratories, State College, Penn.). The standards (obtained from the U.S. Environmental Protection Agency, Research Triangle Park, N.C.) are injected into the gas chromatograph. Compounds are then identified by comparing retention times, and concentrations are derived by measuring peak heights. All solvents are pesticide grade, and blanks are analyzed with each set of samples. All glassware is kiln-cleaned at 5400C for 12 a period of 4 hours. Biochemical Oxygen Demand Analysis (Henry Schafer). The biochemical oxygen demand (BOD) of sediments is the portion of organic material that is present and readily available to meet the metabolic needs of aerobic microorganisms. In this study1 BOD was determined by measuring the amount of oxygen used over a set period of time by a population of microorganisms added to a certain quantity of sediment and maintained under controlled conditions. It is not a direct measure of the amount of oxygen that would be used in the field because it does not account for nor test the requirements of the typical fauna that would be present in the sediments. A seeding solution (microorganism culture) is prepared by mixing marine sediments and digested sludge in 2 liters of oxygen-saturated seawater maintained at 200C. This mixture is then aerated for a period of at least 1 week prior to being used. A sediment sample (0.2 to 2 grams) is weighed and placed into a BOD bottle. Oxygen-saturated seawater is then siphoned into the bottle until it is full; care is taken not to introduce air bubbles or leave a space at the top of the bottle. Then 1 ml of the seed culture supernatant is added to the bottle, and it is capped with a ground glass stopper, creating a water seal. These same procedures are used to prepare blanks. The bottle are then agitated for 10 seconds, or until the sediment is completely suspended, and placed in a darkened area and maintained at 200C. After an incubation period of 5 days, during which the bottles are agitated daily to resuspend sediments, the remaining concentration of dissolved oxygen in the blanks and test bottles is measured by the Azide Modification of the Winkler iodometric techniques for measuring dissolved oxygen (Standard Methods 1976). The 5-day BOD (milligrams of oxygen used per kilogram of sediments) for each sample is then calculated, using the formula: BOD5 = (a - b)0.3 x 1,000, c where a = the dissolved oxygen concentration of the blank, b =the dissolved oxygen concentration in the test bottle, and c =the grams of sediment added to the test bottle, 0.3 liters being the size of the bottle. Chemical Oxygen Demand Analysis (Henry Schafer). The chemical oxygen demand (COD) of sediments is the portion of organic matter that is susceptible to a strong chemical oxidant. While most of the oxygen-demanding substances affected are immediately biologically available, (e.g., acetic acid), others (e.g., cellulose) are not part of the immediate biochemical load on the available oxygen. To begin the COD analysis, an amount of sediment (0.1 to 2 grams, depending on its organic content) is weighed and placed in a 250-ml Erlenmeyer flask. Then 20 ml of 0.25 N potassium dichromate solution, 200 ng of mercuric sulfate, and 20 ml of a concentrated silver sulfate/sulfuric acid solution (22 grams of AgSO4 to a 9-pound (4.09 kg) bottle of H2504) are added; silver sulfate is added to the sulfuric acid as a catalyst for the oxidation of the straight chain (aliphatic) alcohols and acids. The chemicals are swirled in the flask until mixed; the flask is then attached to the condensers, and the mixture is gently boiled for 120 minutes. The condenser is then rinsed out and into the flask with deionized water. After the flask has been removed from the hotplate and allowed to cool, the sample is diluted with deionized water to 150 ml, and three drops of the ferroin indicator are added (1.485 grams 1,10-phenanthroline monohydrate and 695 mg FeSO4.7H20 diluted in deionized water to 100 ml). This final sample is then titrated with a ferrous ammonium sulfate solution (39 grams Fe(NH4)2-(S04)2.6H20 in deionized water and 20 ml of concentrated H2S041 cooled and then diluted to 1,000 ml with deionized water) until a reddish-brown color first appears. The COD (milligrams of oxygen used per kilogram of sediment) is then calculated as follows: COD = (a - b)N x8,000, where N =(0.25 x K2Cs2O7) divided by the amount of ferrous ammonium sulfate (FAS) added to the sample, a = the amount of FAS used by the blank, b = the amount of FAS used to titrate the sample, and c = the weight of the sample. Determination of Percent Volatile Solids (Henry Schafer). This is a method for determining, by weight, the amount of organic material present in sediments rather than the oxygen-demanding potential of those sediments. All materials that will combust at 5500C are defined as volatile. As even portions of crude oil will combust at this temperature, not all of the materials that combust are necessarily biological available organic foods. The procedure consists of placing approximately 4 ml of sediment in a previously weighed beaker and determining the wet weight of the sediment. The sample is then placed in an electric drying oven at 1050C for 24 hours to drive off all liquids. The sample is retained in a desiccator until cooled, so that it will not rehydrate; its dry weight is then determined. The sample is then placed for 1 hour in a muffle furnace at 5500C. After the sample has cooled in the desiccator, the net ash-free weight is determined. The formula for calculating percent volatile solids is as follows: a-b % volatile solids = a x 100, where a is the dry weight of the sample and b is the ash weight. Organic Nitrogen Analysis (Henry Schafer). In the presence of the digestion reagents (H2504, K2S04, H20), the amino nitrogen compounds of many organic nitrogen-containing materials are converted to ammonium sulfate, which is then decomposed by sodium thiosulfate; the resulting ammonia is released by distillation from an alkaline medium and absorbed in boric acid. The ammonia in this liquid is then measured by titration, and the concentration of organic amino nitrogens in the sample is determined. A sample of dried sediment (.0.1 to 3 grams) is placed in an 800-ml Kjeldahl flask with 400 ml of distilled water neutralized to a pH of 7 with lN NaOH or lN H2SOA. To this solution, 24 ml of the phosphate buffer (.14.3 grams H2PO4, 68.8 grams KHPO4, and 1 liter ammonia-free water at pH 7.4) and several boiling chips are added. This container is connected to one end of the distilling apparatus while a 500-ml Erlenmeyer flask containing 50 ml of the boric-acid-indicating solution (60 grams boric acid, 3 liters of ammonia-free distilled water, 20 ml methyl red solution (0.4 grams methyl red and 200 ml reagent alcohol), and 10 ml methylene blue solution (.0.2 grams methylene blue and 100 ml reagent alcohol) is placed on the receiving end of the condenser with its tip extending below the surface of the solution. Distillation is continued with this apparatus until 200 to 300 ml of the distillate is collected in the Erlenmeyer flask. The delivery tube is then removed from the distillate, but distillation is allowed to continue for a few moments to cleanse the condenser and delivery tube. A blank is also distilled using the same procedures. The samples are then titrated with 0.02 N H2SO4 until a pale lavender color is obtained. The amount of amino nitrogens contained in the sample is then determined by the calculation, NH3-N - (a - b)c x 14,000 d where a = the amount of N H2S04 added to the sample, b = the amount of N H2S04 added to the blank, c = the normality of the H2S04, and d = The weight of the sample. Hexane Extractable Material Analysis (Henry Schafer). By definition, this extraction procedure recovers materials called grease and oil, including lipids, chlorinated hydrocarbons, fatty acids, soaps, fats, waxes, and any other material that is soluble in hexane. All of these materials are fairly resistant to anaerobic digestion and, when discharged into the sea, often end up as films on the water surface. However, some of this material becomes associated with organic particles and is incorporated. into the sediments. The amount of this material in a benthic sediment sample is therefore another indirect measure of the amount of organic particulates associated with the sediments. To prepare the sample, 30 to 40 grams of sediment are dried at l050C for 16 hours and then placed in an extraction thimble, which is then put into the extraction tube. Then, 200 ml of hexane (spectra grade) are placed in an Erlenmeyer flask, and the flask is connected to the condenser and extracting tube. The heating mantle is regulated so that the extraction cycle occurs once every 10 minutes for a period of 4 hours. At the end of the extraction, the hexane is removed using a rotary evaporator, and the remaining hexane is drained from the extraction/condenser apparatus into the Erlenmeyer flask. The material remaining in the flask, representing the hexane extractable material (HEM), is weighed after the flask is carefully wiped dry and placed in a desiccator. The amount of HEM is then determined as follows: HEM = a-b where a = the weight of the flask and its contents, b = the weight of the flask alone, and c = the weight of the sample.
Process_Step:
Process_Description: QA Check Performed
Process_Date: 20000807

Spatial_Data_Organization_Information:

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodedic Reference System 80
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio:
298.257 4.2.2.1 Depth Datum Name:

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: TrueValue
Attribute_Definition:
The actual value for certified reference materials, matrix spikes, and standard reference materials
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Unrepresentable_Domain:
The actual value for certified reference materials, matrix spikes, and standard reference materials. Missing from this data set.
Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: MDL
Attribute_Definition:
Method Detection Limit associated with the parameter expressed in the same units as the result
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
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Range_Domain_Maximum: 1.8
Entity_Type:
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Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
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Attribute_Label: RL
Attribute_Definition: Reporting Limit associated with the parameter
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Unrepresentable_Domain: Reporting Limit associated with the parameter
Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: DilutionFactor
Attribute_Definition: The dilution factor associated with the result
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Unrepresentable_Domain: The dilution factor associated with the result
Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: PreparationCode
Attribute_Definition: The method used to extract or prepare the matrix
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: List 34 PreparationCodes
Enumerated_Domain_Value_Definition: A list of preparation codes
Enumerated_Domain_Value_Definition_Source: 1977 Reference Survey Report
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Attribute_Definition: Not Recorded
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Qualifiers
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Qualifier Codes
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Ratio
Attribute_Definition: Ratio
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
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Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: SOXHLET
Attribute_Definition: From standard methods
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
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Enumerated_Domain_Value: Analysis Methods
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Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

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Attribute_Label: Conventional Oven
Attribute_Definition: Conventional Oven
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
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Enumerated_Domain_Value_Definition:
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Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: EPA3050A
Attribute_Definition: From standard methods
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
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Enumerated_Domain_Value: Preparation Methods
Enumerated_Domain_Value_Definition:
The method used to prepare the sample
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Furnace
Attribute_Definition: From standard methods
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Preparation Methods
Enumerated_Domain_Value_Definition:
The method used to prepare the sample
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Kjeldahl
Attribute_Definition: From standard methods
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Preparation Methods
Enumerated_Domain_Value_Definition:
The method used to prepare the sample
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: N/A
Attribute_Definition: Not Available
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
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Enumerated_Domain_Value: Preparation Methods
Enumerated_Domain_Value_Definition:
The method used to prepare the sample
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: PreparationDate
Attribute_Definition: The date the sample was prepared
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: Missing
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Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: AnalysisMethod
Attribute_Definition: The method used to obtain the numerical result
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
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Enumerated_Domain_Value_Definition: A list of Analysis Methods
Enumerated_Domain_Value_Definition_Source: 1977 Reference Survey Report
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Attribute_Label: BOD
Attribute_Definition: Winkler
Attribute_Definition_Source: 1977 Reference Survey Report
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1977 Reference Survey Report

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Attribute_Definition: Titration
Attribute_Definition_Source: 1977 Reference Survey Report
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1977 Reference Survey Report

Attribute:
Attribute_Label: GCECD
Attribute_Definition: Gas Chromatograph
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Analysis Methods
Enumerated_Domain_Value_Definition:
Analysis Methods
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: GFAA/FAA
Attribute_Definition: Grafite Furnace/ Flame AA
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Analysis Methods
Enumerated_Domain_Value_Definition:
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Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

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Attribute_Label: Gravimetic
Attribute_Definition: Weighing
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
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Enumerated_Domain_Value_Definition:
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Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

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Attribute_Label: NR
Attribute_Definition: Not Recorded
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
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Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

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Attribute_Label: Ratio
Attribute_Definition: Ratio
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
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Enumerated_Domain_Value: Analysis Methods
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1977 Reference Survey Report

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Attribute_Label: Titration
Attribute_Definition: Titration
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
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Enumerated_Domain_Value: Analysis Methods
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Enumerated_Domain_Value_Definition_Source:
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Attribute:
Attribute_Label: Volatile Solids
Attribute_Definition: Volatile Solids
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
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Enumerated_Domain_Value: Analysis Methods
Enumerated_Domain_Value_Definition:
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Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: AnalysisDate
Attribute_Definition: The date the analysis was conducted
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: Missing
Range_Domain_Maximum: Missing
Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: LabCode
Attribute_Definition:
The laboratory identifer code for the agency conducting the analysis
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: List 1 Agency Codes
Enumerated_Domain_Value_Definition: A list of participating agencies
Enumerated_Domain_Value_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: SC
Attribute_Definition: Southern California Coastal Water Research Project
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Agency Codes
Enumerated_Domain_Value_Definition:
list 1 Agency Codes
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: Comments
Attribute_Definition: Additional Comments
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Unrepresentable_Domain: Additional Comments
Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: QABatch
Attribute_Definition:
An identifying code for all sample processed together in the same batch
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Unrepresentable_Domain:
An identifying code for all sample processed together in the same batch
Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: FieldRep
Attribute_Definition:
A logical field to record the presence of a field replicate
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: No
Range_Domain_Maximum: Yes
Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: DuplicateNumber
Attribute_Definition: The lab duplicate number within a batch
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 1
Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: MeasurementBasis
Attribute_Definition: The basis for the measurement
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: List 24 Measurement Basis Codes
Enumerated_Domain_Value_Definition: A list of the codes for measurement basis
Enumerated_Domain_Value_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: DW
Attribute_Definition: Dry Weight
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Measurement Basis
Enumerated_Domain_Value_Definition:
The measurement basis
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: WW
Attribute_Definition: Wet Weight
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Measurement Basis
Enumerated_Domain_Value_Definition:
The measurement basis
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: Survey
Attribute_Definition: A code for the project
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Unrepresentable_Domain: A code for the project
Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: StationID
Attribute_Definition: A geographic location label
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Unrepresentable_Domain: A geographic location label
Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: CompositeID
Attribute_Definition:
A key relating the chemistry data to the fish composite table
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Unrepresentable_Domain:
A key relating the chemistry data to the fish composite table
Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: Matrix
Attribute_Definition: The test matrix
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: List 17 Test Matricies
Enumerated_Domain_Value_Definition: A list of test matrices used in the project
Enumerated_Domain_Value_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: Sediment
Attribute_Definition: Sediment from the grab
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Sample Matrix
Enumerated_Domain_Value_Definition:
Sample Matrices
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: SampleType
Attribute_Definition: The type of result
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: List 4 Sample Tyes
Enumerated_Domain_Value_Definition: A list of sample types used in the project
Enumerated_Domain_Value_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: Result
Attribute_Definition: The actual analytical result
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: SampleType
Enumerated_Domain_Value_Definition: Sample Types
Enumerated_Domain_Value_Definition_Source: 1977 Reference Survey Report

Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: ParameterCode
Attribute_Definition: The chemical name of the analyte
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: List 18 Parameter Codes
Enumerated_Domain_Value_Definition: A list of chemical parameter names
Enumerated_Domain_Value_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: % Moisture
Attribute_Definition: Percent Moisture in the sediment
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: BOD
Attribute_Definition: Biological Oxygen Demand
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Cadmium
Attribute_Definition: Metal
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: COD
Attribute_Definition: Chemical Oxygen Demand
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Copper
Attribute_Definition: Metal
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Hexane Extractable
Attribute_Definition: Organics
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Lead
Attribute_Definition: Metal Metal
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Nickel
Attribute_Definition: Metal Metal
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: PCB 1254
Attribute_Definition: Poly Chlorinated Biphenyl
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Percent Sand
Attribute_Definition: Grain Size
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Silver
Attribute_Definition: Metal
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: TOC
Attribute_Definition: Total Organic Carbon
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Total Acid Volitile Sulfides
Attribute_Definition: AVS
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Total DDT
Attribute_Definition: PCB
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Total DDT/Total PCB Ratio
Attribute_Definition: Ratio
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: TON
Attribute_Definition: Total Organic Nitogen
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Total PCB
Attribute_Definition: PCB
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Volatile Solids
Attribute_Definition: Solids
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: Zinc
Attribute_Definition: Metal
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Parameter Code
Enumerated_Domain_Value_Definition:
Chemical being measured
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: Qualifier
Attribute_Definition: A modifier for the numerical result
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: List 13 Qualifiers
Enumerated_Domain_Value_Definition: A list of qualifiers
Enumerated_Domain_Value_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: <
Attribute_Definition: Less than
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Qualifier Codes
Enumerated_Domain_Value_Definition:
List 13 Qualifier Codes
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: ND
Attribute_Definition: Not Detected
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Qualifier Codes
Enumerated_Domain_Value_Definition:
List 13 Qualifier Codes
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: Result
Attribute_Definition: The numerical result of the analysis
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -99 for non detects
Range_Domain_Maximum: 372600
Entity_Type:
Entity_Type_Label: Chemistry Results
Entity_Type_Definition: Table
Entity_Type_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: Units
Attribute_Definition: The units associated with the result
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: List 40 Units
Enumerated_Domain_Value_Definition: A list of all of the units used in the project
Enumerated_Domain_Value_Definition_Source: 1977 Reference Survey Report
Attribute:
Attribute_Label: %
Attribute_Definition: Percent
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Units
Enumerated_Domain_Value_Definition:
Units associated with the result
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: mg / Kg
Attribute_Definition: Parts per thousand
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Units
Enumerated_Domain_Value_Definition:
Units associated with the result
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report

Attribute:
Attribute_Label: No Units
Attribute_Definition: Used for ratios
Attribute_Definition_Source: 1977 Reference Survey Report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Units
Enumerated_Domain_Value_Definition:
Units associated with the result
Enumerated_Domain_Value_Definition_Source:
1977 Reference Survey Report


Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Information Systems Manager or Information Manager
Contact_Address:
Address_Type: mailing address
Address: 3535 Harbor Blvd., Suite 110
City: Costa Mesa
State_or_Province: California
Postal_Code: 92626
Country: USA
Contact_Voice_Telephone: 714.755.3200
Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday
Contact_Instructions: email preferred
Resource_Description: 1977 Reference Survey Sediment Chemistry
Distribution_Liability:
Although these data have been processed successfully on a computer system at SCCWRP, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from a MLML server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. MLML shall not be held liable for improper or incorrect use of the data described and/or contained herein.

Metadata_Reference_Information:
Metadata_Date: 20010918
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Information Systems Manager or Information Manager
Contact_Address:
Address_Type: physical address
Address: 3535 Harbor Blvd., Suite 110
City: Costa Mesa
State_or_Province: California
Postal_Code: 92626
Country: USA
Contact_Voice_Telephone: 714.755.3200
Contact_Facsimile_Telephone: 714.438.1016
Contact_Electronic_Mail_Address: im_contact@sccwrp.org
Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday
Contact_Instructions: email preferred
Metadata_Standard_Name:
NBII Content Standard for National Biological Information Infrastructure Metadata
Metadata_Standard_Version: December 1985
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None
Metadata_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Security_Classification: Unclassified
Metadata_Security_Handling_Description: None

Generated by mp on Sat Apr 17 18:04:28 2004