Okaloosa County BOCC — December 6, 2016 — Gap Creek QAPP — reading text

milliliter (mL) plastic Water 4 degrees centigrade (°C) 48 hours 300.0/SW9056 bottle Total Suspended Solids (TSS) Water 1 liter (L) plastic bottle 4 degrees centigrade (°C) 7 days 160.2 Fecal Coliform 125 milliliter (mL) plastic Water 4 degrees centigrade (°C) 6 hours SM9222D bottle Nitrate + Nitrite 125 milliliter (mL) plastic pH ≤ 2 with sulfuric acid (H2SO4), 4 Water 28 days 300.0/SW9056 bottle degrees centigrade (°C) Total Kjeldahl 250 milliliter (mL) plastic pH ≤ 2 with sulfuric acid (H2SO4), 4 Nitrogen (TKN) Water 28 days bottle degrees centigrade (°C) 351.2 Total Nitrogen 250 milliliter (mL) plastic pH ≤ 2 with sulfuric acid (H2SO4), 4 Water 28 days 300.0/351.2 bottle degrees centigrade (°C) Total Ammonia (Ammonia 250 milliliter (mL) plastic pH ≤ 2 with sulfuric acid (H2SO4), 4 Water 28 days Nitrogen) bottle degrees centigrade (°C) 350.1 Total 125 milliliter (mL) plastic pH ≤ 2 with sulfuric acid (H2SO4), 4 Phosphorus Water 28 days bottle degrees centigrade (°C) 365.4 Oil & Grease 1 liter (L) amber glass with pH ≤ 2 with hydrochloric acid (HCl), Water 28 days 1664 Teflon-lined lid 4 degrees centigrade (°C) 2.7 Grab Sample Collection Using a laboratory supplied unpreserved bottle or stainless steel dip sampler; water will be collected from the top portions of the surface water, with care taken not to disturb any sediment. The bottle/dipper will be rinsed with sample water three times before finally filling the bottle/dipper to transfer water into the appropriate sample container(s). The water will be poured gently from the bottle/dipper into the sample containers. June 2016 | 11 Gap Creek Stormwater Improvements Quality Assurance Project Plan Okaloosa County, Florida If a dipper is used, the dipper will be cleaned as defined in Appendix B. The sampler will be allowed to dry and will be placed under a plastic bag or covered before it is used at a different location and/or sampling period. 2.8 Sample Identification Scheme The following will be recorded on all sample labels:  Unique sample identifier (see below)  Date and time  Sampler’s initials  Parameter(s) to be analyzed for, as specified in Table 2. Each sample will be given a unique sample identifier based on the following format:  MMDDYY-identifier-event Where MM is the two-digit month identifier, DD day of the month and YY is the last two digits of the year in which the sample was collected, and identifiers are assigned as follows:  Identifier: Location/Sample o GCEB: equipment blank o GCDUP: duplicate o GCEFF: effluent o GCINF: influent For example, the sample collected at the effluent for the 25th of April 2016 would have the unique identifier 042516-GCEFF. 2.9 Sample Transport to Laboratory Upon collection of the sample(s), caps will be immediately placed on sample bottle(s), and bottles will be labeled and placed on ice in a cooler to chill to < 4°C. Regular ice and/or blue ice may be used in maintaining the temperature, but samples should be sealed in a zip lock bag to prevent potential contamination from melted ice or breakage of the blue ice packaging during shipping. The field team(s) must complete the required field notebook entries to document the collection of each sample. Once sampling has been completed, samples should be packaged in bubble wrap to prevent breakage during shipping. The bottle caps may be sealed using Teflon tape if needed. The shipping coolers should be adequately packed with ice such that sample temperatures are maintained at < 4°C when received by the laboratory. Chain of custody (CoC) forms (Attachment C) shall be completed and sealed in a waterproof bag (e.g., zip lock bag) to accompany all samples from the time of initial generation through delivery to the analytical laboratory. Sample types, analytes, and analytical methods should be clearly defined on the CoC. Samples will be hand delivered to the lab in Pensacola. Sampling shall be scheduled and conducted so that samples can be immediately received and processed by the laboratory, without first being held over non-working days, to comply with holding times. 12 |June 2016  Gap Creek Stormwater Improvements Quality Assurance Project Plan Okaloosa County, Florida The sample team will contact the laboratory when samples have been collected to notify the shipment is on the way and make sure that personnel will be available to receive the samples. 2.10 Field Log Requirements All observations made during sample collection, grab sampling, and QC sample collection shall be recorded in pen in bound field notebooks. The sample collection personnel are responsible for completing the field logs. The field log book is bound with pages numbered. No pages are to be removed and errors have one line drawn through them then initialed by the writer and the correct information entered. Field logs shall include at minimum:  Personnel onsite  Sampling location  Whether the sampler appears to be securely installed  Size of sample collection bottle installed in sampler  Total sample volume. For collection of samples, field logs will include:  Date and time of collection  Personnel collecting sample  Volume of sample collected  Volume and containers of sample collected, and analyses marked on sample containers  Any other observations pertinent to sample quality. 2.11 Measurement Procedures Methods were chosen that give DLs equal to or less than the lowest concentrations of interest. Analysis will be contracted to TestAmerica Pensacola. DLs are set for each analyte, and this is the level at which the lab is to report non- detected results. All results between the QL and DL will be J-qualified by the laboratory. Table 5 below compares the project required detection limits with the lab’s achievable detection and quantitation limits. June 2016 | 13 Gap Creek Stormwater Improvements Quality Assurance Project Plan Okaloosa County, Florida Table 5. Required Project Detection Limits and Lab Limits TestAmerica Parameter Project Required Detection Limit MDL / MRL Cd - 1 µg/L Cd - 1 / 5 µg/L Cr - 5 µg/L Cr – 2 / 10 µg/L Total Metals 200.7 Cu - 5 µg/L Cu – 2 / 10 µg/L Zn - 10 µg/L Zn – 8 / 20 µg/L Nitrate + Nitrite Nitrate 0.012 / 0.1 mg/L 0.1 mg/L 300.0 Nitrite 0.021 / 0.1 mg/L Total Kjeldahl Nitrogen (TKN) 0.3 mg/L 0.26 / 0.5 mg/L 351.2 Total Nitrogen -- -- 300.0/351.2 Ortho-Phosphate 0.05 mg/L 0.1 / 0.4 mg/L 300.0/SW9056 Total Ammonia (Ammonia Nitrogen) 0.05 mg/L 0.022 / 0.05 mg/L 350.1 Total Phosphorus 0.05 mg/L 0.032 / 0.1 mg/L 365.1 Total Suspended Solids (TSS) 1 mg/L 3.2 / 5.0 mg/L SM2540D Oil & Grease 1 mg/L 1.4 / 4.0 mg/L 1664A Fecal Coliform Not Applicable NA / 1 CFU SM9222D 14 |June 2016  Gap Creek Stormwater Improvements Quality Assurance Project Plan Okaloosa County, Florida 3 Quality Control QC samples will be used in this study to evaluate whether the measurement system is functioning properly and whether the MQOs have been met. The total number of samples for the validation of pollutant removal ranges between 14–20 samples depending on the number of qualifying storm events over the course of a 12 month period. One equipment blank, one field duplicate and one MS/MSD will be collected over the course of this sampling effort. In addition to these field-collected QC samples, the laboratory will analyze QC samples according to their SOPs and the analytical methods. See Table 3 for MQOs related to the below QC samples. 3.1 Laboratory Method Blanks Laboratory method blanks will be prepared and analyzed in the laboratory for each batch of samples. These blanks monitor contamination that may be generated in the laboratory throughout the analytical process. 3.2 Equipment Blanks Equipment blank is designed to be representative of possible contamination introduced by the sampling process. The analytical lab will provide bottles of lab reagent water (contaminant-free water as described