Drywell definition

Drywell means an unlined or partially lined underground pit (regardless of geometry) into which drainage from roofs, basement floors, water softeners or other non-wastewater sources is discharged and from which the liquid seeps into the surrounding soil.

Drywell means a well, other than an improved sinkhole or subsurface fluid distribution system, completed above the water table so that its bottom and sides are typically dry except when receiving fluids.

Drywell means a well which is a bored, drilled or driven shaft or hole whose depth is greater than its width and is designed and constructed specifically for the disposal of storm water. Drywells do not include class 1, class 2, class 3 or class 4 injection wells as defined by the Federal Underground Injection Control Program (P.L. 93-523, part C), as amended. A.R.S. § 49-331(3)

Examples of Drywell in a sentence

• Primary containment conditions subsequently degrade such that the CRS directs entry into EOP-3 Primary Containment Control.The following indications are observed:• Torus pressure is 11.0 psig and slowly rising• Torus level is 11.0 ft and slowly rising• Drywell pressure is 12.25 psig and slowly rising• Drywell temperature is 215 °F and steady• RPV level is 8 inches and steadyGiven the above conditions, the CRS is required to direct which ONE of the following:A.

• Power is lost to the RBCCW pump in standby AND power is lost to RCW-117, Drywell RRU Cooling Water Return.

• The Standby RBCCW pump will auto start AND power is lost to RCW-117, Drywell RRU Cooling Water Return.

• Drywell Surfaces < l ; .he int erior surf aces or tne drywe12, , , I and torus shall be visually inspected , each cperatin% cycle fer evidence of , * Exemption to Appendix J of lJ CFR 50.

• Drywell grate elevation shall be a minimum of 0.3 feet (ft.) above the bottom of retention basin to allow for silt accumulation) i.j. Any work done in a drainage channel or wash must comply with state and federal regulations.

More Definitions of Drywell

Drywell means a subterranean pit, chamber, or structure used to collect storm water, effluent, or other liquid and disperse it into the soil.

Drywell means a well, completed above the groundwater table so that its bottom and sides are typically dry except when receiving fluids.

Drywell means a precast concrete manhole with perforations and installed with drain rock or other material for exfiltration of surface water runoff or other drainage to the subsurface.

Drywell means a well, other than an improved sinkhole or subsurface fluid distribution system, generally completed above the water table so that its bottom and sides are typically dry except when receiving fluids. "Ductility" refers to the ability of a material to sustain stress until it fractures.

Drywell means a subterranean pit, chamber, or structure used to collect stormwater, effluent, or other liquid and disperse it into the soil.

Drywell means an underground enclosure connected to the outlet of a septic tank, commercially pre-cast with open slots or constructed of concrete blocks, bricks or similar material loosely laid with open joints and surrounded with washed stone or other approved media so as to allow the septic tank overflow or effluent to be absorbed directly into the surrounding soil.

Drywell means a well, other than a “subsurface fluid distribution system”, completed above the water table where its bottom and sides are typically dry except when receiving fluids.