Iowa Administrative Code

(IGW) PWSs. 43.5(1) Applicability/general requirements. These rules apply to all PWSs using SW or IGW, in whole or in part, and establish criteria under which filtration is required as a treatment technique (TT). In addition, these rules establish TT requirements in lieu of MCLs …

43.6(1) Residual disinfectant. a. Applicability. (1) CWSs and NTNCs. This rule establishes criteria under which CWSs and NTNCs that add a chemical disinfectant to the water in any part of the drinking water treatment process or that provide water that contains a chemical disinfec…

43.7(1) Corrosion control treatment (CCT) for lead and copper control. a. Applicability. Systems shall complete the applicable CCT requirements by the deadlines specified in the following rules: (1) Large systems serving more than 50,000 persons. A large system (serving greater t…

43.8(1) Definitions specific to viability assessment. a. For viability assessment purposes: “New system” includes newly constructed PWSs and systems that do not meet the definition of a PWS, but which expand their infrastructure and thereby grow to become a PWS. Systems not curre…

serving at least 10,000 people. 43.9(1) General requirements. a. Applicability. The requirements of this rule constitute national primary drinking water regulations. This rule establishes the filtration and disinfection requirements in addition to the filtration and disinfection …

(department) to administer the drinking water state revolving fund (DWSRF) is provided by Iowa Code sections 455B.291 through 455B.299. [ARC 9198C, IAB 5/14/25, effective 6/18/25]

44.10(1) Project initiation conference. The department may require a project initiation meeting with an applicant or the applicants’ representative. 44.10(2) Required project information. a. An applicant seeking financial assistance from the DWSRF for a construction project must …

44.11(1) Allowable costs. Allowable costs shall be limited to those costs deemed necessary, reasonable, and directly related to the efficient completion of the project. The director will determine project costs eligible for state assistance in accordance with rule 567—44.6(455B).…

44.12(1) Final inspection. A final inspection of the project may be performed by the director to verify that construction is complete (except for weather-related items) and conforms with the approved plans and specifications and all approved change orders. 44.12(2) Adequate proje…

failure of a loan recipient to comply with the requirements of 567—Chapter 40 through 567—Chapter 44 constitutes grounds for the withholding of loan disbursements. The loan recipient is then responsible for ensuring that the identified problem is rectified such that disbursements…

decisions, or the withholding of project funding pursuant to this chapter may request a formal review of the action. A person or entity must submit a review request in writing to the director within 45 days of the action date. A decision by the director in a formal review case ma…

designated to administer the DWSRF loan program to assist in the financing of infrastructure projects pursuant to the Safe Drinking Water Act (SDWA). The director will coordinate with the authority under the terms of an interagency agreement entered into pursuant to Iowa Code cha…

44.3(1) The DWSRF provides financial assistance to eligible public water supply systems (PWS) for the design and construction of facilities to ensure public health and the provision of safe and adequate drinking water. 44.3(2) The EPA provides capitalization grants for this progr…

chapter. [ARC 9198C, IAB 5/14/25, effective 6/18/25]

asides, in accordance with 40 CFR §35.3535. The SDWA authorizes set-aside funds to enable states to implement specific SDWA requirements. The amount and use of set-aside money is set each year in the IUP pursuant to rule 567—44.9(455B) and may be adjusted from year to year based …

44.6(1) Eligible systems. The following systems are eligible to receive funds from the DWSRF for improvements as listed and defined in the SDWA amendments of 1996 (P.L. 104-182, August 6, 1996). a. Community drinking water systems (CWSs). b. Nonprofit nontransient noncommunity dr…

44.7(1) Application. Applications for placement on the project priority list shall be accepted by the department on a continuous basis and will be presented to the EPC for approval according to the schedule described in the IUP. Application shall be made on the form provided by t…

44.8(1) Project priority list. The director shall develop and maintain a project priority list of PWSs that have requested financial assistance through the DWSRF program to address either a new or an upgraded drinking water system, including individual subcomponents. The term “pu…

44.9(1) Development. The director shall prepare an IUP at least annually and on a quarterly basis as needed. The IUP will be subject to a public hearing and approved by the commission and EPA. 44.9(2) Contents. The IUP will identify the anticipated uses of loan funds and will inc…

groundwater supplies from contamination by establishing uniform minimum standards and methods for nonpublic water supply well construction and reconstruction. This chapter provides minimum standards for installation of well pumps or equipment employed in withdrawing or obtaining …

49.10(1) Drilled wells. a. Non-bedrock wells. (1) Casing depth. In no case shall less than 20 feet of permanent solid casing be installed in wells drilled in unconsolidated materials. If the alluvial aquifer where the water is to be drawn from is covered by less than 40 feet of l…

the standards and guidance of the AWWA, API, ASTM, and NGWA, except as modified by this rule. 49.11(1) Well casing. a. Steel well casing and couplings. (1) Steel well casing pipe shall have the weights and dimensions specified in Table II. Well casing pipe shall be new steel pipe…

chapter, except for SDs. If the well feature in need of reconstruction cannot be brought into compliance with these rules, the well shall be properly plugged. 49.12(1) Liner installation. If reconstruction will involve the placement of a liner, a certified well contractor shall d…

shall not be disposed of in a stream or storm sewer; nor shall these materials be discharged into a sanitary sewer without permission of the owner and operator of the wastewater treatment facility. [ARC 9196C, IAB 5/14/25, effective 6/18/25]

49.14(1) General pump installation requirements. Pump installation shall be planned and carried out so the pump will be: a. Installed so that it and its surroundings are not exposed to chemical or biological contamination; b. Properly sized so as to provide the volume of water ne…

49.15(1) Discharge pipe. Galvanized, black, or stainless steel drop pipe shall be minimum SCH 40 wall thickness when threaded. Minimum SCH 10 stainless is allowed with mechanical joint type systems. PVC drop pipe shall be minimum SCH 80 wall thickness. SCH 80 machined PVC, brass,…

49.16(1) Pitless adapters and pitless units conforming to WSC Pitless Adapter Standard—1997 (PAS-97) are considered compliant with these rules. 49.16(2) No well casing shall be cut off or cut into below ground surface except to install a pitless well adapter below the frost level…

49.17(1) Caps and seals. a. A well cap shall be used on any well not protected by a wellhouse and shall seal tightly against the casing to prevent surface water, dirt, insects, or any foreign matter from entering the well. b. The well casing shall terminate at least one foot abov…

49.18(1) Underground piping from the well casing to the pressure tank shall be a minimum 100 psi pressure rating, NSF Standard 61, and meet ASTM standards for potable water. 49.18(2) Underground wiring from a well shall either be enclosed in a watertight electrical conduit extend…

49.19(1) Filters and water treatment equipment shall be installed and operated in accordance with manufacturers’ directions. 49.19(2) In all pressure water systems, provision shall be made for collection of water samples directly from the well by installation of a sampling faucet…

567—Chapter 39, 567—Chapter 40, and 567—Chapter 82; the references and abbreviations in 567—Chapter 40; and Iowa Code sections 455B.101, 455B.171, 455B.190 and 455B.190A, the following definitions and abbreviations shall apply to this chapter: 49.2(1) Definitions. “Administrative…

49.20(1) Sizing. With the exception of tanks that utilize VFDs, pressure tanks shall have an effective water volume large enough to allow the well pump to operate at least one minute between low-pressure activation and high-pressure shut off while no water is being used by the sy…

49.21(1) Electrical connections. At a minimum, all electrical installation shall be performed and maintained in accordance with the NEC. A certified pump installer may perform wiring from the pump to the electrical panel unless local ordinances require additional licensing. 49.21…

49.22(1) Backflow prevention for irrigation. Where a chemical injection system is connected directly to a well used for irrigation that is not used as a potable water supply, a single-check spring-loaded backflow preventer shall be installed between the point of chemical injectio…

other provisions of this chapter, the following provisions apply to the construction of GHEX loop systems 20 feet or greater in depth. 49.23(1) Piping shall be a minimum of 160 psi pressure-rated HDPE and be pressure-tested with air or potable water for 15 minutes at a pressure o…

following construction completion and whenever any well services are performed. 49.24(1) Prior to disinfection, all new, repaired or rehabilitated wells shall be pumped to waste until the water is free of drilling mud, drill cuttings, and sand, and the water is clear. 49.24(2) A …

49.25(1) The owner of a new, reconstructed, or rehabilitated well shall submit a water sample to a certified laboratory for coliform bacteria and nitrate analysis, or allow the administrative authority to collect this water sample. The water sample shall be collected at least 10 …

formation as well as a physical hazard for people. 49.26(1) Plugging rules. Abandoned wells shall be properly plugged as required in 567—Chapter 39. 49.26(2) Waste disposal prohibition. Under no circumstances shall abandoned wells be used for the disposal of debris, solid waste, …

reconstruction of all nonpublic water supply wells 20 feet or greater in depth. 49.3(1) Nonconforming well construction installations. a. Certified well drillers and pump installers shall ensure that the reconstruction of nonconforming wells adheres to all applicable provisions o…

49.4(1) Duties of administrative authority. a. The administrative authority shall: (1) Have the authority to visit well sites during any phase of the work without prior notice, and (2) Require the issuance of permits and the submission of well logs by rule. b. The administrative …

49.5(1) Application forms. a. An application for a private well construction permit shall be made on forms provided by the department. However, counties that have active delegation of authority to issue new private well construction permits pursuant to rule 567—49.7(455B) may dev…

49.6(1) Issuance. Upon receipt of a complete application, the department or contracting county shall issue a private well construction permit to the landowner or landowner’s agent, except as provided in 49.6(6). 49.6(2) Not a water withdrawal permit. Each permit shall include not…

49.7(1) Application. A county board of supervisors, board of health, or the board’s designee, hereafter referred to as a “county,” requesting the authority to issue private well construction permits shall enter into an intergovernmental (28E) service agreement with the department…

49.8(1) Wells shall be located with consideration given to the lot size; soil contour, porosity, and absorbency; local groundwater conditions; flooding; publicly available geologic data including but not limited to well logs; and other factors necessary to implement the rules. a.…

the geologic and groundwater conditions of the proposed well site to ensure both the reasonable utilization of every natural protection against contamination of the water-bearing formation(s) and the exclusion of possible sources of contamination, to attempt to produce bacteriall…

Administrative Code. This rule is intended to implement Iowa Code chapter 17A as amended by 1998 Iowa Acts, chapter 1202. [Filed 11/21/75, Notices 7/14/75, 8/25/75—published 12/15/75, effective 1/19/76] [Filed 4/23/81, Notice 2/18/81—published 5/13/81, effective 6/17/81] [Filed e…

the state to establish and administer a comprehensive program to ensure that the water resources of the state be put to beneficial use to the fullest extent possible, that the waste or unreasonable use or unreasonable methods of use of water be prevented, and that the conservatio…

subject to the following conditions: 50.10(1) Protected flow restriction. Except as provided in 50.10(2), withdrawals for consumptive uses, with the exception of CWSs, shall cease when the streamflow is below the protected flow designated in 50.15(3). When the flow of a stream, o…

50.11(1) Withdrawals from unconfined aquifers adjacent to streams. Water withdrawals from unconfined aquifers adjacent to streams shall be subject to the following conditions: a. Protected flow restriction. Withdrawals for consumptive uses, with the exception of CWSs, at any poin…

50.12(1) General. A water use permit shall remain as an appurtenance of the land described in the permit through the date specified in the permit and any permit extension unless the permit or its extension is terminated under rule 567—50.14(455B). A water use permit may be renewe…