Pennsylvania Code
Title 25 - ENVIRONMENTAL PROTECTION
Part I - Department of Environmental Protection
Subpart D - Environmental Health and Safety
Article VIII - Municipal Waste
Chapter 273 - MUNICIPAL WASTE LANDFILLS
Subchapter C - OPERATING REQUIREMENTS
WATER QUALITY MONITORING
Section 273.283 - Standards for wells and casing of wells

Universal Citation: 25 PA Code § 273.283

Current through Register Vol. 54, No. 44, November 2, 2024

(a) A monitoring well shall be constructed with a screen that meets the following requirements:

(1) The screen shall be factory made.

(2) The screen may not react with the groundwater being monitored.

(3) The screen shall maximize open area to minimize entrance velocities and allow rapid sample recovery.

(b) A monitoring well shall be filter-packed with chemically inert clean quartz sand, silica or glass beads. The material shall be well-rounded and dimensionally stable.

(1) The casing shall maintain the integrity of the monitoring well borehole and shall be constructed of material that will not react with the groundwater being monitored.

(2) The minimum casing diameter shall be 4 inches unless otherwise approved by the Department in writing.

(3) The casing shall protrude at least 1 foot aboveground, unless otherwise approved by the Department, and shall be clearly visible.

(4) The casing shall be designed and constructed to prevent cross contamination between surface water and groundwater.

(5) The annular space above the sampling depth shall be sealed to prevent contamination of samples and the groundwater.

(6) If plastic casing is used, it shall be threaded and gasket sealed to preclude potential sample contamination from solvent welded joints, unless otherwise provided by the Department in the permit.

(7) Alternative casing designs for wells in stable formations may be approved by the Department.

(d) A monitoring well casing shall be enclosed in a protective casing that shall:

(1) Be of sufficient strength to protect the well from damage by heavy equipment and vandalism.

(2) Be installed for at least the upper 10 feet of the monitoring well, as measured from the well cap, with a maximum stick up of 3 feet, unless otherwise approved by the Department in writing.

(3) Be grouted and placed with a cement collar at least 3 feet deep to hold it firmly in position.

(4) Be numbered for identification with a label capable of withstanding field conditions and painted in a highly visible color.

(5) Protrude above the monitoring well casing.

(6) Have a locked cap.

(7) Be made of steel or any other material of equivalent strength.

This section cited in 25 Pa. Code § 271.113 (relating to closure plan); 25 Pa. Code § 273.116 (relating to groundwater quality description); 25 Pa. Code § 273.152 (relating to water quality monitoring plan); 25 Pa. Code § 273.281 (relating to general requirements); 25 Pa. Code § 273.286 (relating to groundwater assessment plan); 25 Pa. Code § 279.233 (relating to soil and groundwater monitoring); 25 Pa. Code § 281.254 (relating to soil and groundwater monitoring); 25 Pa. Code § 283.233 (relating to soil and groundwater monitoring); 25 Pa. Code § 285.112 (relating to design and operation); and 25 Pa. Code § 285.123 (relating to impoundments-general).

Disclaimer: These regulations may not be the most recent version. Pennsylvania may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.