(a) (2) An upper drill hole having a diameter of at least 3 three inches greater than the outside diameter of the production casing shall be drilled to extend from land surface into a clay or other formation of low permeability overlying the water-bearing zone. Most current data are provisional. Click to view. and underground mines in Butte and abandoned coal mines in Belt. The department maintains a list of interested persons who wish to receive notices of rulemaking actions proposed by this agency. (2) (3) If a clay layer or other formation of low permeability is not encountered before reaching the top of the water-bearing zone, the upper drill hole and unperforated production casing shall extend to a minimum depth of 18 25 feet below land surface. Original data sources include water rights filings, water well logs, visits to water wells, and publications of the Montana Bureau of Mines and Geology, the U.S. Geological Survey, and others. (3941) "Well log report" means DNRC fForm nNo. For yearly option
Totally synthetic polymers must be used with care, and only after determining that they are chemically acceptable can they be introduced into freshwater water systems. View a map of the Yellowstone Controlled Groundwater Area. (a) (2) In drilled wells that penetrate an aquifer overlain by unconsolidated formations such as sand and gravel without significant clay beds, an unperforated well casing shall extend to at least 1 one foot below the known seasonal low water table. 3. (3) Well casing installed in a well greater than a nominal diameter of ten inches, may have a wall thickness of 0.250 inch as long as it otherwise meets ASTM A-120 A53 specifications and does not exceed the following depth limitations: Table 2 Diameter and depth limitations. A gravel pack is frequently used to: (i) prevent the movement of finer material into the well casing, ; (ii) to increase the ability of the well to yield water; and, (iii) to lend lateral support to screens in unstable formations. (of unverified accuracy and subject to revision). (d) Special care shall be taken to iensure that the seal is watertight around the injection pipe. (24) through (27) remain the same but are renumbered (25) through (28). It shall Shall contain at least six sacks of cement per cubic yard and have a 28-day compressive strength of at least 4,000 psi. These data are currently intended to provide information on the distribution of wells in general rather than the locations of specific wells. (e) All sealing shall be performed by adding the mixture from the bottom of the space to be sealed toward the surface in one continuous operation. The databases are maintained at the Ground-Water Information Center and updated regularly. (9) Any applicant who is determined by the board to be cheating on an examination or using inappropriate material during an examination will fail and be required to wait at least one year before reapplying for a license. The amendments also correct minor grammatical errors. Some of the common GWIC handouts available are also available for
monthly, and annual (water year or calendar year) time periods. Available site descriptive information includes well location information such as latitude and longitude, well depth, and aquifer. studies today. MT DNRC - Water Well Drilling for the Prospective Well Owner WellOwner.Org Water Rights Information Water Quality Testing Private Wells Contact Dept. Ground-Water Regions (on shaded Relief Map) Map Description. PDF Well Log Report - Montana Monitoring groundwater provides important data on water availability that serves as crucial elements to decision makers. Water well logs are maintained in the MBMG's Ground-Water Information Center (GWIC). Bentonite water slurry shall be mixed according to the manufacturer's instructions as a sealing material, and shall in no case contain no less than 1.5 pounds of bentonite per gallon of freshwater water. A PWS is a water system that supplies water for human consumption andhas at least 15 service connections or serves at least 25 people daily for a period of 60 days in a calendar year. (2) "Annular space" or "annulus" means the space between two concentric tubes or casings, or between the casing and the borehole wall. (2) The training may include, but is not limited to, : (b) Montana Water Well Drillers Association, ; (d) other board approved training, relating to the specific area of licensure. Steering Committee ranks and prioritizes project nominations every 3 years. choose a year then click Get Data. in the United States. REASONABLE NECESSITY: The amendments to the rule are reasonably necessary to clarify exam fees and to set a timeline and consequences for cheating on examinations in order to ensure equitable treatment of all applicants. (32) remains the same but is renumbered (33). REASONABLE NECESSITY: The amendments to ARM 36.21.801 are reasonably necessary to define "board" within the subchapter, to set a timeline for filing well log reports, and to identify the Bureau of Mines and Geology. REASONABLE NECESSITY: The amendments to ARM 36.21.634 and 36.21.635 are reasonably necessary for clarification and to conform with existing DEQ rules and other drilling rules and construction standards in order to avoid potential conflicts between rule sets. (Title 85, chapter 2, MCA). Values may include "Approved" The monitoring well constructor shall retain a copy as a record in his files. (13) "Contamination" means the degradation of natural water quality as a result of man's human activities. Distribution liability. 4. MONTANA WELL LOG REPORT Form No. The injection pipe shall be capped with a watertight seal or plug (see Figure 4A at the end of this subchapter). Click on the rule number to see the detail of the rule. Water Quality - Lincolncounty Website How to Locate a Well Log: A Guide to GWIC - MSU Extension Water Quality (37) "Transient noncommunity water system" means a public water supply system that is not a community water system and that does not regularly serve at least 25 of the same persons for at least six months per year. of Public Health (DPHHS) (406) 444-2642 Public Wells Contact Dept. A gravel fill pipe may be installed for injecting gravel prior to sealing the top of the gravel pack (see ARM 36.21.656(5) for definition of a suitable bridge). The Montana State Library provides this product/service for informational purposes only. quality and quantity, encompassing questions related to effects of existing and proposed groundwater development on streamflow,
Summary data regarding compliance for all public water supply systems in Montana can be viewed inMontana's 2022Annual Public Water System Compliance Report, Locate your source water assessment report here:GIS Dashboard, Find information on private wells and septic systems here:Water Resources, DEQ Headquarters1520 E 6th Avenue | Helena, MT 59601 Map of Office Locations, Questions?Call: 406-444-2544Staff Directory, Montana Department of Environmental Quality, entities that provide water to 25 or more people for more than 60 days. Chapter Title: BOARD OF WATER WELL CONTRACTORS NATURAL RESOURCES AND CONSERVATION : View as eBook: Add to Favorites: 36.21 : BOARD OF WATER WELL CONTRACTORS Click on the Rule No. This work was extended
Montana Ground Water Information Center (, Managing your septic system after flooding (PDF), Protecting your well before a flood (PDF), Wildfires and your well and septic system (PDF), Daycares, Community Group Homes, & Schools, Agency for Toxic Substances & Disease Registry, Stay Safe & Healthy Before, During & After a Flood. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. (a) (2) In drilled wells that penetrate an aquifer either within a consolidated or confining formation, sealing of the casing shall conform with one of the following procedures: (i) (a) Aan upper drill hole, at least 3 three inches greater in diameter than the nominal size of the permanent well casing, shall extend from land surface to at least 3 three feet into sound, consolidated formation, but in . 36.21.655 CONSOLIDATED FORMATIONS (1) The following special sealing methods may be required in situations where different techniques are necessary to protect aquifers. Bentonite powder passing a #200 sieve may be mixed with the cuttings. The Library makes these data and services available as a convenience to the public, and for no other purpose. 603 R2-04Well ID# _______________________ This log reports the activities of a licensed Montana well driller and serves as the of cial record of work done within the borehole and casing and describes the amount of water encountered. (d) When cement grout is used in sealing, it shall be set in place 72 hours before additional drilling takes place, unless special additives are mixed with the sealing material that will cause it to adequately set in a shorter period of time. 36.21: BOARD OF WATER WELL CONTRACTORS. 6. Sealing procedures, installation of gravel fill pipes, and temporary casing are substantially the same as in ARM 36.21.659 and 36.21.660. The total people served shall not exceed 24. Art Robinson, Department of Natural Resources and Conservation, has been designated to preside over and conduct the hearing. The databases are maintained at the Ground-Water Information Center. PDF Water Well Drilling for The Prospective Well Owner URL: https://waterdata.usgs.gov/mt/nwis/gw? Clean, safe drinking water is one of the most important contributions to public health. (b) Sealing shall be accomplished to prevent the upward movement of artesian waters within the annular space around the well casing that could result in the waste of groundwater water. These public water systems and their water works operators are the first line of defense against contaminants getting into our water supplies and threatening public health. MBMG hydrogeologists bring
(of unverified accuracy and subject to revision). Metadata for Montana Groundwater Information Center Water Well Data, Montana Bureau of Mines and Geology (MBMG), Montana Groundwater Information Center Water Well Data, Current with receipts of new water well logs, Montana Ground-Water Information Center Water well log data. 1300 West Park Street - Natural Resources Building Room 329. The GWIC wells mapper portrays current locations of Ground Water Information Center (GWIC) water wells and boreholes (at scales larger than 1:288,895). Well log information is available electronically through MBMG's Ground Water Information Center . The USGS National Water Information System (NWIS) DEPARTMENT OF NATURAL RESOURCES AND CONSERVATION, /s/ Mary Sexton /s/ Fred Robinson, MARY SEXTON FRED ROBINSON, Director Rule Reviewer. Lewis and Clark County: GW Monitoring Network , and maintain a copy as a record in his files. (2) All casing having a diameter larger than 20 inches shall have a wall thickness of at least 0.375 inch. Natural polymers are biodegradable and may not be used. The Library reserves the right to change or revise published data and/or services at any time. (406)444-3115, Montana Spatial Data Infrastructure (MSDI). Welcome to Online Correction Submissions. The driller is also required to supply a copy of the completed well log to the well owner. GWIC uses codes in several of its data tables. The data include well-completion reports from drillers, measurements of well performance and water quality based on site visits, water-level measurements at various wells for periods of up to 60 years, and water-quality reports for thousands of samples. These labs do provide other testing services but will need to be contacted directly to obtain the appropriate sample bottles and fee information. (3840) "Well drilling machine" means any power-driven machine used in the construction or alteration of water wells, including, but not limited to, percussion, jetting, rotary, boring, digging, or augering machines.