Groundwater Sampling and Monitoring Wells Guidance. U.S. Office of Surface Mining Reclamation and Enforcement 05/21/2012. WELL PURGING DATA A. Purging Technique 1.3 VADOSE ZONE SOIL-WATER MONITORING Instructions on vadose zone soil-water sampling and monitoring are beyond this field manual's scope. 4.2 Measurement and sampling of NAPL layers in monitoring wells should always be performed prior to purging the well or extracting ground water from the well. Monitoring Well Identification # 1. sampling and monitoring equipment. collect groundwater data from these monitoring wells. This guide discusses the advantages and disadvantages of various well sampling methods, equipment, and sample preservation techniques. STATIC GROUNDWATER DATA BEFORE SAMPLING A. Refer to Section 5.0 of the Groundwater Sampling Desk Reference for a more detailed discussion on the collection, use and limitations of such data. Air Monitoring Calibration Solutions/Gas (3) Gas Detection (16) Radiation Detection (0) Soil Sampling Liners (3) Augers (3) EPA Method 5035 (6) Sampling Kits (6) Groundwater Sampling; Leveloggers; Water Quality Instruments / Buffers Solutions (7) Turbidity Meters (5) Pumps / Tubing Pumps (13) Tubing (8) Monitoring Well Supplies 5.2 The goal in sampling ground-water monitoring wells is to obtain samples that meet the DQOs. However, a purge rate of … Ideal for isolating discrete zones for: Groundwater sampling and monitoring; Minimizing purge volumes Specific details follow: • The locking well cap will be removed from monitoring well -20 and the groundwater CI Summers et al., (1987) provides a good discussion on the accuracy, bias, precision, representativeness, completeness and comparability of groundwater data collected from monitoring wells. This sampling and analysis plan describes the sampling equipment that will be used, well purging strategy, purge water disposal, sample collection and processing, field and laboratory sample analysis, equipment decontamination, and quality-assurance and quality-control procedures. Flow Rate and Draw Down • The rate at which groundwater is removed from the well during purging should be no more than approximately 0.2 - 0.3 liter per minute (L/min). This guidance provides clarification on the Solid Waste Program's recommendations for complying with Title 18 Chapter 60 of the Alaska Administrative Code (18 AAC 60) requirements for Sampling Procedures and Monitoring Well … Depth to Well Bottom measured during this event (ft) B. Solinst Low Pressure Pneumatic Packers are available in two sizes, as single or straddle packers primarily for use in 2" to 5" monitoring wells (50 and 125 mm). Well Purging Procedures for Obtaining Valid Water Samples from Domestic and Monitoring Wells . Start your project right by purchasing well building materials from Environmental Equipment & Supply. Environmental Well Caps, Plugs and Driveovers. Regular sampling of ground water collected from monitoring wells is one way that NMED determines whether or not your discharge is affecting ground water quality…..in other words; whether or not your permit is working as intended. • Sampling procedures • Monitoring well reference points and surveys . Monitoring wells that contain NAPL generally should not be developed, purged using a bailer, or pumped at a high flow rate relative to the well yield. accordance with EPA guidance on Low-Flow Ground-Water Sampling Procedures and following the protocols established in thRevised West of 4th Groundwater Monitoring Program Plane dated December 23, 2014. well. Whether your well is for groundwater monitoring, vapor extraction, heavy metal sampling or mining, quality components make all the difference. 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