COMPLIANCE INFO_PRE 2019 - Laserfiche WebLink

Home Browse Search

(1) Ground water monitoring wells shall be sealed from the ground surface to the top of the filter pack. ( }} Borings shall be described In accordance with the provisior of Sections 2648(t) and (u) of this article. Authority: HBSC 25299.3 Reference: H&SC 25292 Adopt new Section to read: 2648. General Construction and Sampling Methods -------------- (a) Soil and water sampling equipment and materials used to construct a well shall be compatible with the stored hazardous substance and shall not donate, capture, mask, no alter the constituents for which analyses will be made. {b) Representative samples of all Imported materials used for filter packs and to construct seals shall be evaluated to determine their acceptability with regard to Subsection (a) of this aection. (c) All drilling tools shall be thoroughly cleaned immediately before a boring is started. (d) All well casings, casing fittings, screens, and all other components that are installed in the well shall be thoroughly cleaned before installation In the boring. (e) All soil and water samplers shall be cleaned before each ,� °3►:tae3s. s_ � "- sample 13 taken (f) Dr 11ng fluff --additives shall be limited to inorganic, non- hoz dour terials which conform to the provisions of Subse on (a) of this section. All additives used and the dep iImwhich they were used shall be accurately recorded the bo ng log. x . g) Representative samples of additives, cement, bentonite, and filter media shall be retained for 90 days For possible analysis for contaminating or interfering constituents. (h) All ground water monitoring wells shall be appropriately developed until the discharge water contains less than 10 ppm settleable solids_ (I) Well heads shall be provided with a water-tight cap. 4.25