reglab/statecodes huggingface dataset:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0150 - Sealing of Water Supply Wells in Consolidated Formations

Current through Register Vol. 63, No. 7, July 1, 2024
(1)
			 Water supply wells drilled into a water-bearing rock formation overlain by
			 clay, silt, sand, gravel, cobbles, or similar materials, shall be constructed
			 in accordance with one of the following methods:
(a) Method 1 (Continuous Seal):
(A) An upper oversize drillhole, at least
			 four inches greater in diameter than the nominal diameter of the permanent well
			 casing to be installed, shall extend from land surface to at least five feet
			 into solid, unfractured, consolidated rock overlying the water-bearing rock
			 formation below a depth of 13 feet. Unperforated permanent well casing shall
			 extend to this same depth.
(B) The
			 annular space between the permanent well casing and the drillhole wall within
			 the consolidated rock formation shall be filled with grout using an approved
			 grout placement method.
(C) The
			 upper annular space between the permanent well casing and the drillhole wall
			 shall be filled with grout using an approved grout placement method from land
			 surface to at least five feet into a clay interval below a depth of 13
			 feet.
(D) The annular space between
			 the upper and lower sealing intervals shall be filled with grout using an
			 approved grout placement method.
(E) A smaller diameter liner pipe or well
			 screen may be installed to complete the well.
(F) If cement grout is placed by a suitable
			 method from the bottom of the permanent well casing to land surface (Methods A,
			 B, D, Appendix 210-3), the upper drillhole shall be at least two inches larger
			 than the nominal diameter of the permanent well casing. (See Figure
			 210-4);
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0155 - Additional Standards for Artesian Water Supply Wells

Current through Register Vol. 63, No. 7, July 1, 2024
(1) Water supply wells penetrating into an
			 artesian aquifer shall have an upper oversize drillhole at least four inches
			 greater in diameter than the nominal diameter of the permanent well casing to
			 be installed. Watertight unperforated casing shall extend and be sealed at
			 least five feet into the confining interval immediately overlying the artesian
			 water-bearing zone. In all cases, a minimum of 18 feet of casing and casing
			 seal will be required. If cement grout is placed by a suitable method from the
			 bottom of the casing (Methods A, B, or D, in Appendix 210-3 and Figure 210-1),
			 the diameter of the upper oversize drillhole shall be at least two inches
			 larger than the nominal diameter of the permanent well casing.
(2) To complete the well, inner casing,
			 liner, or a well screen may be installed. When artesian pressures are
			 encountered in the absence of a confining interval, casing and casing seal
			 requirements shall be determined by the Director upon written application. In
			 the alternative, the person constructing the well may construct the well in
			 conformance with the minimum standards for artesian wells with a confining
			 interval, set forth in section (1) of this rule.
(3) If an artesian water supply well flows at
			 land surface, the well shall be equipped with a control valve and a watertight
			 mechanical cap, threaded or welded, so that all flow of water from the well can
			 be completely stopped.
(4) All
			 flowing artesian wells shall be equipped with a pressure gauge placed on a
			 dead- end line. A petcock valve shall be placed between the gauge and well
			 casing. (See Figure 210-7).
(5) All
			 flowing artesian water supply wells shall be tested for artesian shut-in
			 pressure in pounds per square inch and rate of flow in cubic feet per second,
			 or gallons per minute, under free discharge conditions. This data shall be
			 reported on the well report.
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS 536.090, ORS 537.505-537.795,
				  ORS 536.027, ORS 536.900 & ORS 537.992
Statutes/Other Implemented: ORS 536.090, ORS 537.505-537.795,
				  ORS 536.900 & ORS 537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0160 - Additional Standards for Filter Pack Wells with Surface Casing

Current through Register Vol. 63, No. 7, July 1, 2024
If a permanent surface casing is installed in the construction
				of a filter pack well, a watertight, welded, steel plate at least 3/16 of an
				inch in thickness shall be installed between the inner production casing and
				the outer surface casing at the well head. A watertight fill port with threaded
				cap may be installed for the purpose of placing additional filter pack material
				in the well. (See Figure 210-8.)
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.027, ORS
				  536.900 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0170 - Additional Standards for Filter Pack Wells without Surface Casing

Current through Register Vol. 63, No. 7, July 1, 2024
If a permanent surface casing is not installed in the
				construction of a filter pack well, and filler tubes are to be used, an
				oversize well bore having a nominal diameter of at least eight inches greater
				than the nominal diameter of the permanent well casing shall be constructed. If
				filler tubes are not to be used, an oversize well bore having a nominal
				diameter of at least four inches greater than the nominal diameter of the
				permanent well casing shall be constructed. A suitable plug shall be installed
				in the annular space between the filter pack material and the grout seal. A
				watertight fill pipe with threaded cap may be installed for the purpose of
				placing additional filter pack material in the well. The outside diameter of
				the fill pipe shall not exceed one-half the thickness of the grout seal
				surrounding the permanent well casing and shall be centered in the annular
				space. (See Figure 210-9.)
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.027, ORS
				  536.900 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0180 - Additional Standards for Driven or Jetted Wells

Current through Register Vol. 63, No. 7, July 1, 2024
All drive point wells or jetted wells shall have nonperforated,
				watertight casing meeting the minimum specifications shown in Table 210-1 and
				extending a minimum distance of 18 feet below land surface. Drive casing
				greater than 3-1/2 inches shall comply with the minimum specifications in OAR
				690-210-0190. An upper drillhole at least four inches greater in nominal
				diameter than the permanent casing shall extend at least 18 feet below land
				surface. The annular space shall be filled with grout. If temporary casing is
				used during construction, it must be removed during placement of the grout.
				(See Figure 210-10.)
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.027, ORS
				  536.900 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0190 - Steel Casing

Current through Register Vol. 63, No. 7, July 1, 2024
(1) All steel casing installed shall be in
			 new or like new condition, being free of pits or breaks, and shall meet or
			 exceed the minimum American Society for Testing Materials (ASTM A-53A or B)
			 specifications for steel pipe, for the sizes as set out in Table
			 210-2.
(2) All steel casing having
			 a diameter larger than 20 inches shall have a wall thickness of at least 0.375
			 inch.
(3) Steel casing installed in
			 a well greater than a nominal diameter of ten inches, having a wall thickness
			 of 0.250 inch and meeting or exceeding ASTM A-53 A or B specifications must not
			 exceed the following depth limitations (Diameter - Maximum Depth,
			 respectively):
(a) 12 inches - 500
			 feet;
(b) 14 - 16 inches - 250
			 feet;
(c) 18 - 20 inches - 100
			 feet.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0200 - Steel Casing Joints

Current through Register Vol. 63, No. 7, July 1, 2024
All steel casing joints shall be welded or thread coupled and
				shall be water tight. If welded casing joints are used, the weld shall be a
				full penetrating weld at least equal in thickness to the wall thickness of the
				casing. Welded casing joints shall have a tensile strength equal to or greater
				than that of the casing.
Stat. Auth.: ORS 183, ORS 536, ORS 537 & ORS 540
Stats. Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0210 - Plastic Casing

Current through Register Vol. 63, No. 7, July 1, 2024
(1) Plastic
			 casing shall not be driven and may only be installed in an oversized
			 drillhole.
(2) Plastic casing may
			 only be installed after drilling has been completed. No drilling is allowed
			 inside plastic casing.
(3) Such
			 casing shall be of polymerized vinyl chloride (PVC), type 1120 or 1220, SDR 21
			 (Class 200) or SDR 26 (Class 160) or greater wall thickness, meeting the
			 standards of the "National Sanitation Foundation" and the specifications of
ASTM F-480
or
ASTMD-2241-73
and
D-1784-69
. The well casing must be clearly marked by the
			 manufacturer showing: nominal size, type plastic material, Standard Dimension
			 Ratio (SDR), ASTM designation, and National Sanitation Foundation seal of
			 certified approval. The maximum depth to which this plastic casing may safely
			 resist collapsing forces is a function of the "Standard Dimension Ratio" (SDR),
			 i.e., the ratio of the outside diameter to the casing wall thickness. The
			 maximum depths have been computed for readily available SDR and are cited as:
(a) SDR = 21 -- Maximum Depth = 150
			 feet;
(b) SDR = 26 -- Maximum Depth
			 = 100 feet.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0220 - Plastic Casing Joints

Current through Register Vol. 63, No. 7, July 1, 2024
All plastic casing joints shall be watertight. Either "bell"
				type, threaded, or coupling hubs are approved. Hub couplings shall be of
				material meeting the specifications for plastic casings as set forth in OAR
				690-210-0210. Joints shall be made by solvent cement in accordance with
				manufacturer's directions. Newly assembled joints require careful handling
				until the initial set has taken place, which varies with the temperature and
				the pipe size. The recommended initial set times are from manufacturer's
				recommendations (See Table 210-4).
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.027, ORS
				  536.900 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0230 - Inner Casing

Current through Register Vol. 63, No. 7, July 1, 2024
Inner casing installed into a well must meet the minimum
				requirements of well casing (OAR 690-210-0190). The space between the two well
				casings shall be sealed so as to prevent the movement of water between the two
				casings. Inner casing installed in a well shall extend or telescope at least
				eight feet into the lower end of the well casing. The inner casing must be
				centered and must be a minimum of one inch smaller in diameter than the outer
				casing if an under reaming method system is used. If other methods are used,
				the inner casing must be a minimum of two inches smaller in diameter than the
				outer casing. The grout must be placed in a positive manner in accordance with
				method A, B, D, or E (see Appendix 210-3).
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.027, ORS
				  536.900 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0240 - Casing Shall be Centered

Current through Register Vol. 63, No. 7, July 1, 2024
In all instances, casings shall be centered in sealed
				intervals. Casing centralizers may be used to ensure centering. When sealing a
				well by Method E, casing centralizers shall be used. (See Figure
				210-11).
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.027, ORS
				  536.900 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0250 - Top Terminal Height

Current through Register Vol. 63, No. 7, July 1, 2024
(1) The
			 casing head or pitless unit of any well shall extend a minimum of 12 inches
			 above the finished ground surface or pumphouse floor, and a minimum of 12
			 inches above the local surface runoff level. The ground surface immediately
			 surrounding the top of the well casing or pitless unit should be graded so as
			 to drain surface water away from the well. Without permission of the Director,
			 no casing shall be cut off below land surface except to install a pitless unit
			 or during permanent abandonment of a well.
(2) Application to the Director to reduce the
			 top terminal height of casing shall include:
(a) A description of physical characteristics
			 of the well site which make the requested change necessary; and
(b) A description of additional steps to be
			 taken over and above the minimum standards in these rules which will assure
			 adequate protection of the ground water resource.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0260 - Openings in the Casing

Current through Register Vol. 63, No. 7, July 1, 2024
There shall be no opening in the casing wall between the top of
				the casing and the bottom of the required casing seal except for pitless
				adapters, measurement access ports, and grout nipples installed in conformance
				with these standards. In no case shall holes be cut in the casing wall for the
				purpose of lifting or lowering casing into the well bore unless such holes are
				properly welded closed and watertight prior to placement into the well
				bore.
Stat. Auth.: ORS 183, ORS 536, ORS 537 & ORS 540
Stats. Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0270 - Pitless Well Adapters and Units

Current through Register Vol. 63, No. 7, July 1, 2024
Surface seal requirements for well casing set forth herein
				shall also apply when a pitless adapter or unit is installed in a well. The
				seal shall cover that interval occupied by the pitless case from the point of
				casing connection to land surface. A cement grout seal shall not be allowed
				within the pitless unit or pitless adaptor sealing interval. The pitless
				adapter or unit sealing interval shall be sealed with unhydrated bentonite as
				described in OAR 690-210-0330  and 690-210-0340. The pitless adapter or unit,
				including the cap or cover, pitless case and other attachments, shall be
				designed and constructed to be watertight to prevent the entrance of
				contaminants into the well from surface or near-surface sources. Pitless units
				shall be vented to the atmosphere. Refer to OAR 690-210-0210  if the pitless
				adaptor or unit is to be used in conjunction with PVC casing.
NOTE: Prior to installing pitless well adapters or units on
				public, community, municipal, or public utility water supply wells, contact the
				Department of Human Resources. (See references to Health Division regulation in
				Appendix 210-1).
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.027, ORS
				  536.900 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0280 - Access Ports, Dedicated Measuring Tubes and Airlines

Current through Register Vol. 63, No. 7, July 1, 2024
(1)
			 All water supply wells, including wells that have been temporarily removed from
			 service, temporarily abandoned due to a recess in construction, or temporarily
			 abandoned before commencing service, shall be properly covered and shall be
			 equipped with a usable access port with a minimum diameter of 1/2- inch for the
			 purpose of determining the water level in the well at any time.
(2) Access ports shall be installed prior to
			 the Water Supply Well Constructor removing the well drilling machine from the
			 well site.
(3) Dedicated measuring
			 tubes that meet the requirements of OAR 690-215-0060  are recommended to be
			 installed on all water supply wells at the time of pump installation, pump
			 repair, or pump replacement. Where required, dedicated measuring tubes shall be
			 a minimum of 3/4-inch diameter schedule 40 PVC extending to the top of the pump
			 (See Figure 200-5). The 3/4-inch diameter dedicated measuring tube may be
			 reduced in size to 1/2-inch where it goes through the watertight well cap, but
			 shall not be reduced in size over the length of the pipe.
(4) An airline is not a substitute for a
			 required dedicated measuring tube and, if installed, must enter the well in a
			 location other than the access port.
(5) Access ports, dedicated measuring tubes
			 or airlines on all water supply wells shall be capped and be a minimum of
			 twelve inches above finished ground surface or pumphouse floor (See Figures
			 210-12 and 200-5).
(6) Access
			 ports, airlines and dedicated measuring tubes on all water supply wells shall
			 be maintained by the landowner in a condition that will prevent contamination
			 of the groundwater resource, and shall remain free from wire or other
			 obstruction.
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.027, ORS
				  536.900 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0290 - Liner Pipe

Current through Register Vol. 63, No. 7, July 1, 2024
Liner pipe installed through caving formations and installed
				without driving, may be of lighter weight than specified by Table 210-2 under
				OAR 690-210-0190. Such lightweight pipe shall have a wall thickness equal to or
				greater than 0.188 inch. All liner pipe shall be of steel, in new or like new
				condition, being free of pits or breaks; or shall be of polymerized vinyl
				chloride (PVC) type 1220 or 1120 and SDR 26 (Class 160) or greater wall
				thickness. Liner pipe installed in a well shall extend or telescope at least
				eight feet into the lower end of the well casing. In the event that more than
				one string of liner pipe is installed, each string shall extend or telescope at
				least eight feet into the adjacent larger diameter liner pipe. Liner pipe shall
				be removable. Liner pipe may be welded or hooked onto the permanent well casing
				but shall not be permanently fixed to a well casing or borehole wall using
				packers or grout which would prohibit the liner's removal. (See Inner Casing,
				OAR 690-210-0230.)
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.027, ORS
				  536.900 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0300 - Drill Cuttings or Chips

Current through Register Vol. 63, No. 7, July 1, 2024
In no case shall drill cuttings or drill chips be used or
				allowed to fill, partially fill, or fall into the required sealing interval of
				a well during the construction or the completion of a well.
Stat. Auth.: ORS 183, ORS 536, ORS 537 & ORS 540
Stats. Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0310 - Cement Grout

Current through Register Vol. 63, No. 7, July 1, 2024
When using cement grout as the sealing material in a well, it
				must meet the following requirements:
(1) Cement grout used to seal a well shall be
			 composed of a uniformly mixed slurry of Portland cement or High Early Strength
			 Type III Portland cement and potable water, or High-alumina cement and potable
			 water, mixed in the following proportions (Type of Cement - Gallons of Water
			 Per Sack of Dry Cement, respectively):
(a)
			 Portland Cement - 4-1/2 to 6;
(b)
			 High Early Strength Type III Portland Cement - 5-1/2 to 6-1/2;
(c) High-alumina Cement - 4-1/2 to 6.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0315 - Concrete

Current through Register Vol. 63, No. 7, July 1, 2024
Concrete for use in the construction of a dug well, or for
				filling the annular space or well bore of a well, shall consist of clean, hard,
				and durable aggregate, and not less than five sacks of Portland cement per
				cubic yard of concrete. Concrete will be allowed only when the oversize drill
				hole is a minimum of eight inches larger in diameter than the well casing used
				in construction of the well. The maximum diameter of aggregate particles shall
				not exceed 1-1/2 inches, but, in any case, shall not exceed 1/5 or 20 percent
				of the minimum width of the space to be filled. The ratio of coarse aggregate
				to fine aggregate (Passing No. 4, U.S. Standard Sieve) shall be approximately
				1-1/2 to 1 by volume, but, in any case, shall not exceed 2 to 1 nor be less
				than 1 to 2.
Stat. Auth.: ORS 183, ORS 536, ORS 537 & ORS 540
Stats.
				  Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0320 - Methods of Placement of Cement Grout or Concrete

Current through Register Vol. 63, No. 7, July 1, 2024
Cement grout or concrete used as a sealing material in a well
				shall be placed or forced upward from the bottom to completely fill the annular
				space to be grouted and shall be placed in one continuous operation without
				significant interruption. If temporary outer surface casing is used in the
				construction of the well, it shall be withdrawn as the grout or concrete is
				placed. (For acceptable methods of placement, see Appendix 210-3 and Figure
				210-1).
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.027, ORS
				  536.900 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0330 - Unhydrated Bentonite

Current through Register Vol. 63, No. 7, July 1, 2024
Unhydrated bentonite used in construction of casing seals for
				water supply wells shall be specifically designed for sealing wells and be
				within industry tolerances for dry western sodium bentonite. Bentonite shall be
				free of polymers that promote bacterial growth. Placement of the bentonite
				shall conform to the manufacturers specifications and result in a seal that is
				free of voids or bridges. Powdered bentonite and bentonite grout or slurry
				shall not be used as an annular seal material.
Stat. Auth.: ORS
				  536.090 & ORS
				  537.505 - ORS
				  537.795
Stats.
				  Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0340 - Method of Placement of Unhydrated Bentonite

Current through Register Vol. 63, No. 7, July 1, 2024
(1) An upper oversize drillhole, four inches
			 greater than the nominal inside diameter of the permanent well casing, shall be
			 constructed to a minimum depth of 18 feet below land surface. The use of
			 unhydrated bentonite as a casing seal shall not be allowed deeper than 200 feet
			 below land surface. In the event that the materials penetrated by the oversize
			 drillhole cave, or tend to cave, an outer temporary surface casing shall be
			 used to case out the caving materials during construction of the oversize
			 drillhole. The outer temporary surface casing shall be removed during seal
			 installation and before completion of the well.
(2) In the event groundwater is encountered
			 during the construction of the oversize drillhole, only unhydrated bentonite
			 chips manufactured to be 3/8 inch to ? inch, pellets or tablets shall be
			 allowed in the water-filled portion of the annulus. A maximum of 50 feet of
			 water may be present in the sealing interval. Unhydrated bentonite shall be
			 screened across a minimum ? inch mesh screen prior to being placed in the
			 water-filled portion of the annulus to minimize the introduction of bentonite
			 dust into the seal interval. Unhydrated bentonite shall not be used:
(a) In the water-filled portion of a
			 temporary casing; or
(b) If there
			 is any uphole flow in the annular seal interval.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0350 - Resumption of Construction Following Placement of Cement Grout

Current through Register Vol. 63, No. 7, July 1, 2024
The time needed for the final set of a cement grout mixture
				varies greatly in accordance with cement-water ratio and temperature. When
				cement grout is used to seal a well, construction should not resume until after
				the final set of the cement grout mixture. Performance of all cement grout
				seals shall be the responsibility of the person responsible for the
				construction of the well. Under no circumstances shall construction resume
				within six hours of the placement of the cement grout seal. Recommended periods
				of time for the final set are:
(1) If
			 Portland Cement is used -- 72 hours;
(2) If High Early Strength Type III Portland
			 Cement is used - 48 hours;
(3) If
			 High-alumina Cement is used -- 6 hours.
Stat. Auth.: ORS 183, ORS 536, ORS 537 & ORS 540
Stats.
				  Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0360 - Movement of Casing after Cement Grouting

Current through Register Vol. 63, No. 7, July 1, 2024
In no case shall the permanent well casing be moved or driven
				following the placement and initial set of the cement grout.
Stat. Auth.: ORS 183, ORS 536, ORS 537 & ORS 540
Stats.
				  Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0370 - Well Test

Current through Register Vol. 63, No. 7, July 1, 2024
Upon completion, every well shall be tested for yield and
				drawdown either by bailing, pumping, or air testing for a period of not less
				than one hour. Any testing method that does not provide for drawdown
				measurements during testing is not an accurate or reliable test of
				yield.
Stat. Auth.: ORS
				  536.090 & ORS
				  537.505 - ORS
				  537.795
Stats.
				  Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0380 - Disinfection of a Well

Current through Register Vol. 63, No. 7, July 1, 2024
Prior to or after being placed in the well, pumping equipment,
				sand, gravel and well casing shall be thoroughly hosed or sluiced with water,
				and shall be disinfected with a solution containing at least 50 parts per
				million chlorine. All water introduced into a well during construction shall be
				clean and potable. Upon completion, the well and its equipment, including the
				interior of the well casing, shall be thoroughly swabbed and cleaned to remove
				all of the oil, grease, and foreign substances. The well and its equipment
				shall be disinfected by thoroughly agitating and mixing in the well a solution
				containing enough chlorine to leave a residual of 25 parts per million
				throughout the well after a period of 24 hours. Disinfection should also occur
				following the installation of pumping equipment. (See Chart Recommendations for
				Disinfection of Wells, Appendix 210-2).
NOTE: Other public agencies may have jurisdiction over the
				discharge of chlorine in certain areas. The constructor should contact the
				Oregon Department of Environmental Quality or the appropriate city public works
				department for further information.
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.027, ORS
				  536.900 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0390 - Completion of Wells

Current through Register Vol. 63, No. 7, July 1, 2024
A well constructor or permitted landowner constructing their
				own well shall not remove the drilling machine from a well site, unless it is
				immediately replaced by another drilling machine in operating condition prior
				to completion or abandonment of the water supply well in compliance with OAR
				690-210-0005  through 690-220-0140.
Stat. Auth.: ORS
				  536.090 & ORS
				  537.505 - ORS
				  537.795
Stats.
				  Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0400 - Construction of Dug Wells

Current through Register Vol. 63, No. 7, July 1, 2024
Dug wells that are 21 feet or less in depth shall be sealed
				with grout from land surface to within three feet of the bottom of the well.
				Dug wells greater than 21 feet in depth shall be sealed with grout from land
				surface to a depth of at least 18 feet below land surface. In all cases a
				watertight surface curbing shall extend from a minimum of 12 inches above land
				surface and continue the entire length of the sealed interval. Open wells,
				sometimes called sumps, which exceed ten feet in average diameter and are dug
				to a depth of ten feet or less are exempt from these construction requirements,
				but are subject to all the requirements covering the use of ground water (water
				right application). (See Figure 210-13).
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.027, ORS
				  536.900 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0410 - Buried Slab Construction

Current through Register Vol. 63, No. 7, July 1, 2024
In a buried slab type well, the slab shall be at least 18 feet
				below land surface and shall be at least three inches in thickness. The slab
				shall be reinforced to withstand all stresses. The slab shall be sealed with
				cement grout at least one foot thick, and the well bore backfilled with grout
				in accordance with OAR 690-210-0300  through 690-210-0360. (See Figure
				210-13).
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.027, ORS
				  536.900 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 210 - WELL CONSTRUCTION STANDARDS › Section 690-210-0420 - Surface Curbing

Current through Register Vol. 63, No. 7, July 1, 2024
(1) The surface
			 curbing required in OAR 690-210-0400  shall be of concrete, concrete tile, or
			 steel. If concrete is used, the concrete wall thickness shall not be less than
			 six inches. In the case of buried slab type wells, well casing meeting the
			 minimum specifications given in 690-210-0190  through 690-210-0220  shall be
			 used. (See Figure 210-13.)
(2) If
			 precast concrete tile or steel casing is used for the surface curbing, the well
			 diameter to the bottom of the surface curbing shall be eight inches greater
			 than the outside diameter of the tile or steel, and the annular space shall be
			 completely filled with grout in accordance with OAR 690-210-0310  through
			 690-210-0340. (See Figure 210-13).
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.027, ORS
				  536.900 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 215 - MAINTENANCE, REPAIR AND DEEPENING OF WATER SUPPLY WELLS › Section 690-215-0005 - Prevention of Groundwater Contamination, Health Hazard, and Waste

Current through Register Vol. 63, No. 7, July 1, 2024
(1) The landowner of the property on which
			 the water supply well is constructed is ultimately responsible for the
			 maintenance and use of the water supply well. All water supply wells should be
			 disinfected following the installation of pumping equipment. Refer to OAR
			 690-210-0380, Appendix 210-2 for recommendations on well
			 disinfection.
(2) The landowner
			 shall maintain all water supply wells in a condition where they are not a
			 health threat, a health hazard, a source of contamination or a source of waste
			 of the ground water resource by allowing loss of artesian pressure or
			 commingling of aquifers. A pitless adapter may be attached to the casing to
			 transmit water from the well into the delivery pipeline. The pitless adapter
			 shall be installed in such a manner as to prevent the contamination of the
			 ground water resource. The landowner is responsible to assure that the space
			 between the side of the well borehole and the well casing is sealed as required
			 by OAR 690-215-0025.
(3) If, in the
			 opinion of the Director, a water supply well is a health threat, a health
			 hazard, a source of contamination, or a source of waste of the ground water
			 resource, the Director may order discontinuance of, or impose conditions upon,
			 the use of the water supply well. In addition, the Director may order that the
			 well be repaired or permanently abandoned in accordance with OAR chapter 690,
			 divisions 215 and 220 of the Standards for Construction and Maintenance of
			 Water Supply Wells in the State of Oregon.
To view attachments referenced in rule text,
click here to view
				  rule
.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900, ORS
				  536.027 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 215 - MAINTENANCE, REPAIR AND DEEPENING OF WATER SUPPLY WELLS › Section 690-215-0006 - Well Alterations

Current through Register Vol. 63, No. 7, July 1, 2024
(1) Well
			 alterations as defined in OAR 690-200-0050(7)  shall be performed by a licensed
			 Water Supply Well Constructor, or a landowner with a Landowner's Well
			 Construction Permit and bond.
(2)
			 Water Supply Well Constructors or a permitted and bonded landowner shall record
			 the following data, if available, on the Water Supply Well Report as required
			 under OAR 690-205-0210  before completing alteration work on a well:
(a) Pre-alteration static water level and
			 date taken.
(b) Pre-alteration
			 casing diameter.
(c) Pre-alteration
			 casing gauge.
(d) Pre-alteration
			 well depth.
(e) Pre-alteration seal
			 material.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 215 - MAINTENANCE, REPAIR AND DEEPENING OF WATER SUPPLY WELLS › Section 690-215-0010 - Maintenance of an Existing Well Following Construction of Replacement Well

Current through Register Vol. 63, No. 7, July 1, 2024
Any time a new water supply well is constructed to replace an
				existing well which is a source of contamination, or is wasting the ground
				water resource by allowing loss of artesian pressure or commingling of
				aquifers, the existing well shall be repaired in compliance with these rules or
				abandoned in accordance with OAR 690-220-0030  through
				690-220-0140.
Stat. Auth.: ORS
				  536.090 & ORS
				  537.505 - ORS
				  537.795
Stats.
				  Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 215 - MAINTENANCE, REPAIR AND DEEPENING OF WATER SUPPLY WELLS › Section 690-215-0015 - Repealed

Current through Register Vol. 63, No. 7, July 1, 2024
Stat. Auth.: ORS 183, ORS 536, ORS 537 & ORS 540
Stats. Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 215 - MAINTENANCE, REPAIR AND DEEPENING OF WATER SUPPLY WELLS › Section 690-215-0016 - Maintaining Well Setback Requirements

Current through Register Vol. 63, No. 7, July 1, 2024
Within the boundaries of their own property, property owners
				are responsible for maintaining the applicable minimum setback distances for
				any well on their property. Refer to OAR 690-210-0030  for current minimum
				setback distances.
Stat. Auth.: ORS
				  536.090 & ORS
				  537.505 - ORS
				  537.795
Stats. Implemented: ORS
				  536.090 & ORS
				  537.505 - ORS
				  537.795
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 215 - MAINTENANCE, REPAIR AND DEEPENING OF WATER SUPPLY WELLS › Section 690-215-0017 - Down Well Continuous Water Treatment and Back-Siphon Prevention Devices

Current through Register Vol. 63, No. 7, July 1, 2024
(1) The following definitions apply solely to
			 OAR 690-215-0017:
(a) "Backflow" means the
			 flow of a mixture of water, fertilizer and/or chemicals in the opposite
			 direction of that intended.
(b)
			 "Backpressure" means an elevation of pressure downstream of the distribution
			 system that would cause, or tend to cause, water to flow opposite of its
			 intended direction.
(c)
			 "Back-siphonage" means a drop in distribution system pressure below atmospheric
			 pressure (partial vacuum), that would cause, or tend to cause, water to flow
			 opposite of its intended direction.
(d) "Reduced Pressure Principle Backflow
			 Prevention Assembly (RP)" means an assembly containing two independently acting
			 approved check valves, together with a hydraulically operating, mechanically
			 independent pressure differential relief valve located between the check valves
			 and at the same time below the first check valve. The unit shall include
			 properly located resilient seated test cocks and tightly closing resilient
			 seated shutoff valves at each end of the assembly. This assembly is designed to
			 protect against a non-health hazard or a health hazard.
(e) "University of Southern California,
			 Foundation for Cross-Connection Control and Hydraulic Research (USC FCCCHR)" is
			 an agency that conducts laboratory and field tests to evaluate and grant
			 "Certificates of Approval" to backflow prevention assemblies meeting approved
			 standards.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 215 - MAINTENANCE, REPAIR AND DEEPENING OF WATER SUPPLY WELLS › Section 690-215-0020 - Valves and Casing on Artesian Wells

Current through Register Vol. 63, No. 7, July 1, 2024
Valves and casing on all artesian wells shall be maintained in
				a condition so that the flow of water can be completely stopped when the water
				is not being put to beneficial use. All casing, liner pipe, and casing seals
				shall be maintained in a condition that will prevent surface or subsurface
				leakage of ground water. Valves shall be closed when water is not being put to
				beneficial use. During periods of subfreezing temperatures, a valve may be
				partially opened to prevent damage due to freezing.
Stat. Auth.: ORS 183, ORS 536, ORS 537 & ORS 540
Stats.
				  Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 215 - MAINTENANCE, REPAIR AND DEEPENING OF WATER SUPPLY WELLS › Section 690-215-0025 - Sealing Pitless Adapter and Pitless Units

Current through Register Vol. 63, No. 7, July 1, 2024
The sealing area around pitless adapter or pitless unit
				installations shall be replaced with unhydrated bentonite as required by OAR
				690-210-0330 and shall be at least one and one-half inches thick around the casing and
				pitless device.
Stat. Auth.: ORS 183, 536, 537 & 540
Stats.
				  Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 215 - MAINTENANCE, REPAIR AND DEEPENING OF WATER SUPPLY WELLS › Section 690-215-0030 - Casing and Casing Extensions

Current through Register Vol. 63, No. 7, July 1, 2024
(1) All well casing used to extend a well
			 head above land surface or used in the alteration, repair or deepening of water
			 supply wells shall meet the minimum standards in OAR 690-210.
(2) The annular space surrounding the well
			 casing used to extend the well head shall be sealed as required by OAR 690-210
			 and shall be at least four inches greater than the nominal inside diameter of
			 the permanent well casing.
NOTE:
Prior to extending the casing on public,
				community, municipal, or public utility water supply wells, contact the
				Department of Human Services. Additional requirements may
				apply.
Stat. Auth.: ORS 183, 536, 537 & 540
Stats.
				  Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 215 - MAINTENANCE, REPAIR AND DEEPENING OF WATER SUPPLY WELLS › Section 690-215-0035 - Liner Pipe

Current through Register Vol. 63, No. 7, July 1, 2024
All liner pipe used in the alteration, repair or deepening of
				water supply wells shall meet the minimum standards in OAR
				690-210-0290.
Stat. Auth.: ORS 183, 536, 537 & 540
Stats.
				  Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 215 - MAINTENANCE, REPAIR AND DEEPENING OF WATER SUPPLY WELLS › Section 690-215-0040 - Casing and Sealing Wells after Disturbance

Current through Register Vol. 63, No. 7, July 1, 2024
(1) If during the installation of casing,
			 liner pipe, seals, packers, or during repair or deepening of a water supply
			 well, the pre-existing casing is withdrawn, or moved as to compromise the
			 annular seal, the well shall be cased and sealed in accordance with the rules
			 set forth in OAR 690-210.
(2) If
			 the annular seal is not compromised when cleaning out a water supply well or
			 installing liner pipe, the water supply well shall not require re-casing or
			 re-sealing.
Stat. Auth.: ORS 183, 536, 537 & 540
Stats.
				  Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 215 - MAINTENANCE, REPAIR AND DEEPENING OF WATER SUPPLY WELLS › Section 690-215-0045 - Deepening of Wells

Current through Register Vol. 63, No. 7, July 1, 2024
(1) Only the
			 following wells may be deepened without an approved special standard:
(a) Wells with well reports that describe the
			 original construction. The original well report must be:
(A) Referenced on the deepening well report;
			 or
(B) Attached to the deepening
			 well report.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 215 - MAINTENANCE, REPAIR AND DEEPENING OF WATER SUPPLY WELLS › Section 690-215-0050 - Well Cover

Current through Register Vol. 63, No. 7, July 1, 2024
All water supply wells shall be securely covered to prevent any
				foreign substance from entering the well, including any material which might
				contaminate the ground water. The well cover shall meet the requirements of OAR
				690-220-0005.
Stat. Auth.: ORS 183, ORS 536, ORS 537 & ORS 540
Stats.
				  Implemented:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 215 - MAINTENANCE, REPAIR AND DEEPENING OF WATER SUPPLY WELLS › Section 690-215-0055 - Well Identification Label Maintenance

Current through Register Vol. 63, No. 7, July 1, 2024
The well identification label shall not be removed from the
				wellhead and shall be maintained by the landowner in an accessible location and
				in a readable condition. See OAR 690-200-0048  for well identification label
				placement methods and instructions.
Appendices referenced are available from the
				  agency.
Statutory/Other Authority: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.027, ORS
				  536.900 & ORS
				  537.992
Statutes/Other Implemented: ORS
				  536.090, ORS
				  537.505-537.795, ORS
				  536.900 & ORS
				  537.992