Sample Collection and Laboratory Analysis Sample Clauses
Sample Collection and Laboratory Analysis. Wood will collect samples at 23 stormwater lakes and three pump stations each month for one year. The sample collection schedule will be coordinated according to the City of Naples Naples Bay water quality monitoring. In- situ water quality measurements will be recorded alongside sample collection and will include temperature, pH, dissolved oxygen (mg/L and % saturation), and conductivity/salinity. Water quality meters (i.e. YSI) will be calibrated and maintained according to FDEP SOPs. Samples will be collected according to FDEP SOPs. After proper preservation (i.e. acidification or filtration) immediately after collection, samples will be placed on ice and transported to the analytical laboratory within analytical hold times. To meet QA/QC requirements, Wood will collect one equipment blank per monthly event for all parameters except fecal indicator bacteria, biological (chlorophyll-a), and physical/aggregate parameters (hardness, color, turbidity). Total Kjeldahl Nitrogen 351.2 0.05 mg/L Nitrate + Nitrite Nitrogen Systea 1-reagent 0.006 mg/L Nitrite SM4500-NO2B 0.003 mg/L Nitrate Calculation 0.006 mg/L Ammonia Nitrogen 350.1 0.008 mg/L Total Nitrogen Calculation 0.05mg/L Total Phosphorus 365.3 0.008 mg/L Total Hardness SM2340C 0.682 mg/L Color/pH SM2120B 2.5 CU Turbidity 180.1 0.11 NTU Ortho-Phosphorus 365.3 0.002 mg/L Total Suspended Solids SM2540D 0.570 mg/L Copper SM3113B/MIBK 0.346/0.271 mg/L Chlorophyll a* 445.0 0.25 ug/L Fecal Coliform (MF) SM2540C #/100 ▇▇ ▇.coli (MPN) SM9223B (quantitray) #/100 mL Enterococci EPA 1600 #/100 mL *Stormwater lake sample only Samples will be collected in one day using two sampling teams. The two teams will work separate routes, splitting the sampling and coordinating a single lab drop off for the end of the day. Wood also obtained quotes from two analytical laboratories: Benchmark EnviroAnalytical, Inc. (Benchmark) and ▇▇▇▇▇▇▇ Laboratories, Inc. (▇▇▇▇▇▇▇), included in Attachment B. The monthly analytical costs for the parameters in Table 1 were $5,626.50 from Benchmark and over $9,000 from ▇▇▇▇▇▇▇, which translated into an almost $50,000 difference over a one-year period. Therefore, only the Benchmark analytical costs are included in the fee schedule (Attachment A). It should be noted that the per sample cost for each parameter were higher for both noted labs as compared to Advanced Environmental Laboratories, Inc. (AEL). However, upon direction from the City, AEL quotes were not included as part of this proposal.
Sample Collection and Laboratory Analysis. 4.1.1 The purpose of the elutriate test is to simulate the release of dissolved contaminants from dredging operations.
4.1.2 The elutriate test requires the collection of ambient water for mixing with sediment samples for analysis. Blank seawater samples will be used and analysed to study the concentration of contaminates released from the sediment.
4.1.3 The testing parameters, analytical methods, reporting limits and QA/QC procedures for the elutriate test are listed in Table 4-1. Standard elutriate preparation for sediment and marine water samples will be carried out in accordance with “Evaluation of Dredged Material Proposed for Ocean Disposal – Testing Manual, USEPA and US Army Corps of Engineers, EPA 503/8- 91/001, 1991” and “Evaluation of Dredged Material Proposed for Discharge on Waters of the US – Testing Manual (Inland Testing Manual), USEPA and US Army Corps of Engineers, EPA 823-B-98/004, 1998”. Cadmium (Cd) ICP-MS USEPA 6020A 0.2 µg /L Chromium (Cr) ICP-MS USEPA 6020A 1 µg /L Copper (Cu) ICP-MS USEPA 6020A 1 µg /L Mercury (Hg) ICP-AES/CV-AAS USEPA 6010B/ APHA 3112B 0.1 µg /L Nickel (Ni) ICP-MS USEPA 6020A 1 µg /L Lead (Pb) ICP-MS USEPA 6020A 1 µg /L Silver (Ag) ICP-MS USEPA 6020A 1 µg /L Zinc (Zn) ICP-MS USEPA 6020A 4 µg /L Metalloid (µg/L) Arsenic (As) ICP-MS USEPA 6020A 2 µg /L Organic PAHs (µg/L) Low Molecular Weight PAHs GC-MSD USEPA 3510C or 3630C or 8270C 0.2 µg /L High Molecular Weight PAHs Organic Non-PAHs (µg/L) Total PCBs GC-ECD/GC-MSD USEPA 3510C or 3630C or 8270C 0.01 µg /L Organometallics (µg TBT/L in interstitial water) Tributylin (TBT) GC-MSD UNEP / IOC / IAEA (2) 0.015 µg /L Chlorinated Pesticides (µg/L) Alpha-BHC Beta-BHC Gamma-BHC Delta-BHC Heptachlor Aldrin Heptachlor epoxide Endosulfan p,p’-DDT p,p’-DDD p,p’-DDE Endosulfan sulfate GCMSD/ GCECD USEPA 3510C USEPA 3620B USEPA 8270C USEPA 8081A 0.1 µg /L (individually) Ammonia FIA APHA 4500-NH3 H 0.025mg/L Nitrite as N FIA APHA 4500-NO3 I 0.025mg-/L Nitrate as N FIA APHA 4500-NO3 I 0.025mg-/L Total Kjeldahl Nitrogen (TKN) Kjeldahl APHA 4500-Norg + NH3 C 0.05 mg-/L Total P Colorimetric APHA 4500-PB&E 0.02 mg-/L Reactive P FIA APHA 4500-PF 0.01 mg-/L Remarks:
(1) Low molecular weight PAHs include acenaphthene, acenaphthylene, anthracene, fluorene, naphthalene, and phenanthrene; High molecular weight PAHs include benzo[a]anthracene, benzo[a]pyrene, chrysene, dibenzo[a,h]anthracene, fluoranthene, pyrene, benzo[b]fluoranthene, benzo[k]fluoranthene, indeno[1,2,3-c,d]pyrene and benzo[...
Sample Collection and Laboratory Analysis. Sediment cores would be collected using a vibracore by Anchor QEA and our subcontractor Leviathan Environmental Services from 13 locations within three dredge units. Enough sediment would be collected and archived to characterize sediments for in-Bay disposal or placement at Montezuma according to the approved SAP. Reference sediment would be collected from the SF-9 reference site. Individual core samples and Z-layer samples would be archived from each core. Depending on composite sediment chemistry results, limited chemical analysis of these samples may be required. An individual core sample would only be analyzed if there is a need to refine the dredge areas based on elevated chemistry values. A Z-layer sample would only be analyzed to characterize the newly exposed surface layer if the dredged sediment exhibited elevated chemical concentrations. These additional analyses would only be conducted if requested by DMMO. Additional analysis of individual core samples and Z-layer samples is not included in this cost estimate. In accordance with DMMO guidelines, three composite samples would be submitted for physical and chemical analyses and biological testing to determine suitability for in-Bay disposal and placement at Montezuma. Sediment chemistry would include total solids, total organic carbon, grain size, metals, organotins, polycyclic aromatic hydrocarbons, organochlorine pesticides, and polychlorinated biphenyls. Biological testing for in-Bay disposal would include two solid phase tests and one suspended particulate phase test. During solid phase biological testing, reference sediment would be tested concurrently with composite samples for comparative purposes. Additional analysis for placement at Montezuma would include modified elutriate chemistry and bioassay testing. Anchor QEA would perform data validation to ensure laboratory analyses meet the project data quality objectives.