Ecological Evaluation Technical Guidance - State of New Jersey

More documents

Recommendations

Info

same batch of organisms used for the test samples (so the SRT is directly related to thestudy). The lab should have a reference toxicant control chart for each species and agegroup they regularly use in testing. The object of the SRT is to assess the organismhealth, the lab procedure, and the technician's handling.Ecological Evaluation Technical Guidance Document 109Version 1.2 8/29/12
Appendix D - Sediment Toxicity TestingFreshwater Test SpeciesTwo benthic invertebrate species are usually tested simultaneously for freshwater(salinity of 3.5 ppt or less) sediment toxicity studies in New Jersey. They are theamphipod (Hyalella azteca) and the midge (Chironomus dilutus). Other potentiallyappropriate species mentioned in the USEPA and ASTM guidance include the amphipod(Diporeia spp.), the midge (Chironomus riparius) the mayfly (Hexagenia spp.) and theoligochaete worms Lumbriculus variegatus and Tubifex tubifex.H. azteca and C. dilutus are usually tested simultaneously to incorporate their varyingsensitivities and their different exposure pathways. H. azteca is epibenthic (lives andfeeds on top of the sediment, hidden by leaves and organic detritus), while C. dilutusburrows directly into the sediment. This distinction is important in situ, but in laboratorystudies, no leaves or cover objects are added to the test chambers, so both species burrowdirectly into the sediment. Testing is performed in accordance with USEPA (2000a) andASTM (2005a) guidance.Saltwater Test SpeciesThe most commonly used benthic invertebrates for estuarine and marine sedimenttoxicity testing in New Jersey are the amphipods, Leptocheirus plumulosus andAmpelisca abdita, and the polychaete worms Neanthes arenaceodentata and Neanthesvirens. Other amphipod species included in the ASTM methods are Eohaustoriusestuarius and Rhepoxynius abronius, Pacific species that are not applicable for use inNew Jersey.Marine sediment toxicity testing is usually performed with a single amphipod species. L.plumulosus is more appropriate for lower salinity (5 to 20 ppt), estuarine sedimentsamples, and A. abdita is more appropriate for higher salinity (20 to 35 ppt), marinesediment samples.Because of their relatively large size and available tissue mass, the polychaete worms N.arenaceodentata and N. virens are used for bioaccumulation studies in which the wormsare exposed to a test sediment for a specified time (e.g., 28 days) and then the tissue issubmitted for analysis of contaminants of concern.Toxicity Test TypesThere are three basic types of sediment toxicity tests:(1) static, nonrenewal tests, in which the overlying water is not changed throughoutthe test. These have the advantages of being simple, with minimal physicaldisturbance of the sediment or test organisms, and the disadvantage that theammonia and oxygen demand from the sediment may confound the results;(2) static-renewal tests in which the overlying water is exchanged periodically (e.g.,every 12 hours). These have the advantage of being able to address the ammoniaand dissolved oxygen issues but are more labor intensive and cause more physicaldisturbance to the sediment and test organisms; and(3) flow-through tests in which there is a continual or semi-continual flow of freshoverlying water through the test chambers for the duration of the test. These haveEcological Evaluation Technical Guidance Document 110Version 1.2 8/29/12
Page 1 and 2:
Ecological EvaluationTechnical Guid
Page 3 and 4:
6.2.1.3 Biological Sampling of Fish
Page 5 and 6:
Acronyms and AbbreviationsADDAETAFA
Page 7 and 8:
Executive SummaryThis document prov
Page 9 and 10:
environmentally sensitive areas pur
Page 11 and 12:
Figure 3-1: Flow diagram to describ
Page 13 and 14:
assessment may also include evaluat
Page 15 and 16:
“Hazard quotient” or “HQ” m
Page 17 and 18:
“Site investigation” means the
Page 19 and 20:
parameters as specified in ERAGS (i
Page 21 and 22:
document otherwise). The investigat
Page 23 and 24:
5.3.2.1 Potential Contaminant Migra
Page 25 and 26:
71 0Sampling pointsSampling transec
Page 27 and 28:
5.3.4 Background ConsiderationsIt i
Page 29 and 30:
III. GroundwaterAnalytical data fro
Page 31 and 32:
5.5 Ecological Evaluation ReportThe
Page 33 and 34:
Step 1 - Preliminary Screening Leve
Page 35 and 36:
specific measurements of receptor h
Page 37 and 38:
Figure 6-2: Ecological Conceptual S
Page 39 and 40:
ingested, air inhaled, or material
Page 41 and 42:
Fugacity, which is described as the
Page 43 and 44:
environment. As noted in ERAGS, the
Page 45 and 46:
Sample SelectionAfter completing th
Page 47 and 48:
While there are many laboratories t
Page 49 and 50:
ioavailability, and by doing so, of
Page 51 and 52:
For the purposes of surface water,
Page 53 and 54:
higher trophic level receptors. Lip
Page 55 and 56:
Details regarding surface water tox
Page 57 and 58:
e present at intervals greater than
Page 59 and 60: elatively sedentary organisms that
Page 61 and 62: COPECs. The following references ar
Page 63 and 64: tests (USEPA, 2002e). After collect
Page 65 and 66: multiple reference area soils repre
Page 67 and 68: In ERAs, tissue residue analyses ar
Page 69 and 70: Objectives of the ERA: including a
Page 71 and 72: evaluation might necessitate the co
Page 73 and 74: N.J.A.C. 7:26E-4.8(c)1. The ERA may
Page 75 and 76: sediment (i.e., that fraction that
Page 77 and 78: Twelve dioxin-like PCB congeners ha
Page 79 and 80: indicates burial of potential dioxi
Page 81 and 82: of evidence for evaluating risk unt
Page 83 and 84: 7.2.1 Apparent Effects Threshold Ap
Page 85 and 86: when site conditions are most simil
Page 87 and 88: destroying 10 acres of the mature f
Page 89 and 90: ASTM (American Society for Testing
Page 91 and 92: Establishing Sediment Quality Crite
Page 93 and 94: N.J.A.C. (New Jersey Administrative
Page 95 and 96: USEPA. 1989c. Risk Assessment Guida
Page 97 and 98: http://www.epa.gov/owow/oceans/regu
Page 99 and 100: USEPA 2006a. Data Quality Assessmen
Page 101 and 102: Appendix A - Habitat Survey FormsEc
Page 103 and 104: Ecological Evaluation Technical Gui
Page 105 and 106: Appendix B - Sampling Procedures fo
Page 107 and 108: Appendix C - Surface Water Toxicity
Page 109: Short-term chronic studies, endpoin
Page 113 and 114: Toxicity Test DesignSediment toxici
Page 115 and 116: Appendix E - Sediment Pore Water an
Page 117 and 118: The seven-day daphnid survival and
Page 119 and 120: esults are then evaluated using USE
Page 121 and 122: Surber or Square-foot BottomThis sa
Page 123 and 124: Appendix H - Soil Toxicity TestingS
Page 125 and 126: another sample may still have a sub
Page 127 and 128: conservative approach from an ecolo
Page 129: Data PresentationTabular presentati
show all

Ecological Evaluation Technical Guidance - State of New Jersey

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?