DHS 157.96(2)(a)(a) Standard radionuclide. The following methods used to measure radionuclides and specified in “Prescribed Procedures for Measurement of Radioactivity in Drinking Water” EPA-600/4-80- 032 shall be used to determine compliance with sub. (1), except in cases where alternative methods have been approved under sub. (4): DHS 157.96(2)(b)(b) Other radionuclides. When the identification and measurement of radionuclides other than those listed in par. (a) is required, the following references shall be used, except in cases where alternative methods have been approved under sub. (4): DHS 157.96(2)(b)1.1. Procedures for Radiochemical Analysis of Nuclear Reactor Aqueous Solutions, H. DHS 157.96(2)(b)2.2. Section 4.5.4 of the Health and Safety Laboratory Procedure Manual pertaining to testing water, ERDA-HASL 300, 28th Edition. DHS 157.96 NoteNote: 1. The Procedures for Radiochemical Analysis of Nuclear Reactor Aqueous Solutions, H. L. Krieger and S. Gold, EPA-R4-73-014, May 1973, is available upon written request to: Department of Health Services, Radiation Protection Section, PO Box 2659, Madison WI 53701-2659.
DHS 157.96(2)(c)1.1. For the purpose of monitoring radioactivity concentrations in drinking water, the required sensitivity of the radioanalysis is defined in terms of a detection limit. The detection limit shall be that concentration that may be counted with a precision of plus or minus 100% at the 95% confidence level, where 1.96 is the standard deviation of the net counting rate of the sample. DHS 157.96(2)(c)2.2. To determine compliance with sub. (1) (a) 1., the detection limit may not exceed one pCi/L. To determine compliance with sub. (1) (a) 2., the detection limit may not exceed 3 pCi/L. DHS 157.96(2)(c)3.3. To determine compliance with sub. (1) (b), the detection limits may not exceed the concentrations listed in Table DHS 157.96B. Table DHS 157.96B
Detection Limits for Man-made
Beta Particle and Photon Emitters
DHS 157.96(2)(d)(d) Compliance. To judge compliance with the maximum contaminant levels listed in sub. (1), averages of data shall be used and shall be rounded to the same number of significant figures as the maximum contaminant level for the substance in question. DHS 157.96(3)(3) Monitoring frequency in community water systems. DHS 157.96(3)(a)(a) Monitoring requirements for gross alpha particle activity, radium-226 and radium-228. DHS 157.96(3)(a)1.1. Compliance with sub. (1) (a) shall be based on the analysis of an annual composite of 4 consecutive quarterly samples or the average of the analyses of 4 samples obtained at quarterly intervals. DHS 157.96(3)(a)1.a.a. A gross alpha particle activity measurement may be substituted for the required radium-226 and radium-228 analyses provided that the measured gross alpha particle activity does not exceed 5 pCi/L at a confidence level of 95%, where 1.96 is the standard deviation of the net counting rate of the sample. In localities where radium-228 may be present in drinking water, the department may require radium-226 or radium-228 analyses or analyses of both when the gross alpha particle activity exceeds 2 pCi/L. DHS 157.96(3)(a)1.b.b. When the gross alpha particle activity exceeds 5 pCi/L, the same or an equivalent sample shall be analyzed for radium-228. DHS 157.96(3)(a)2.2. A supplier of water shall monitor water supplies at least once every 4 years following the procedure required by subd. 1. At the discretion of the department, when the record taken in conformance with subd. 1. establishes that the average annual concentration is less than half the maximum contaminant levels established by sub. (1) (a), analysis of a single sample may be substituted for the quarterly sampling procedure required by subd. 1. DHS 157.96(3)(a)2.a.a. When ordered by the department, more frequent monitoring shall be conducted in the vicinity of mining or other operations that may contribute alpha particle radioactivity to either surface or groundwater sources of drinking water. DHS 157.96(3)(a)2.b.b. A supplier of water shall monitor in conformance with subd. 1. within one year of the introduction of a new water source for a community water system. More frequent monitoring shall be conducted when ordered by the department if possible contamination or changes in the distribution system or treatment processing occur that may increase the concentration of radioactivity in finished water. DHS 157.96(3)(a)2.c.c. A community water system using 2 or more sources having different concentrations of radioactivity shall monitor source water and water from a free-flowing tap when required by the department. DHS 157.96(3)(a)2.d.d. Monitoring for compliance with sub. (2) (a) need not include radium-228 except when required by the department, provided that the average annual concentration of radium-228 has been assayed at least once using the quarterly sampling procedure required by subd. 1. DHS 157.96(3)(a)2.e.e. A supplier of water shall conduct annual monitoring of any community water system in which the radium-226 concentration exceeds 3 pCi/L, when required by the department. DHS 157.96(3)(a)3.3. If the average annual maximum contaminant level for gross alpha particle activity or total radium as set forth in sub. (1) (a) is exceeded, the supplier of a community water system shall give notice to the department under sub. (7) and notify the public as required by sub. (8). Monitoring at quarterly intervals shall be continued until the annual average concentration no longer exceeds the maximum contaminant level or until a monitoring schedule as a condition to a variance, exemption or enforcement action is no longer in effect. DHS 157.96(3)(b)(b) Monitoring requirements for man-made radioactivity in community water systems. DHS 157.96(3)(b)1.1. Community water systems using surface water sources and serving more than 100,000 persons and any other community water systems as are designated by the department shall be monitored for compliance with sub. (1) (b) by analysis of a composite of 4 consecutive quarterly samples or analysis of 4 quarterly samples. Compliance with sub. (1) (b) may be assumed without further analysis if the average annual concentration of gross beta particle activity is less than 50 pCi/L and if the average annual concentrations of tritium and strontium-90 are less than those listed in Table 157.96A, provided that if both radionuclides are present, the sum of their annual dose equivalents to bone marrow does not exceed 4 millirem. DHS 157.96(3)(b)1.a.a. If the gross beta particle activity exceeds 50 pCi/L, an analysis of the sample shall be performed to identify the major radioactive constituents present. The appropriate organ and total body doses shall be calculated to determine compliance with sub. (1) (b). DHS 157.96(3)(b)1.b.b. A supplier of water shall conduct additional monitoring, as required by the department, to determine the concentration of man-made radioactivity in principal watersheds designated by the department. DHS 157.96(3)(b)1.c.c. At the discretion of the department, a supplier of water utilizing only groundwaters may be required to monitor for man-made radioactivity. DHS 157.96(3)(b)2.2. After the initial analysis required by subd. 1., a supplier of water shall monitor at least every 4 years following the procedure given in subd. 1. DHS 157.96(3)(b)3.3. The supplier of any community water system designated by the department as utilizing water subject to contamination by effluents from nuclear facilities shall initiate quarterly monitoring for gross beta particle and iodine-131 radioactivity and annual monitoring for strontium-90 and tritium. DHS 157.96(3)(b)3.a.a. Quarterly monitoring for gross beta particle activity shall be based on the analysis of monthly samples or the analysis of a composite of 3 monthly samples. If the gross beta particle activity exceeds 50 pCi/L, an analysis of the sample shall be performed to identify the major radioactive constituents present and the appropriate organ and total body doses shall be calculated to determine compliance with sub. (1) (b). DHS 157.96(3)(b)3.b.b. For iodine-131, a composite of 5 consecutive daily samples shall be analyzed once each calendar quarter. As required by the department, more frequent monitoring shall be conducted when iodine-131 is identified in the finished water. DHS 157.96(3)(b)3.c.c. Annual monitoring for strontium-90 and tritium shall be conducted by means of the analysis of a composite of 4 consecutive quarterly samples or analysis of 4 quarterly samples. DHS 157.96(3)(b)3.d.d. Data obtained by the direct monitoring of water supplies in the areas surrounding nuclear facilities may be utilized by the supplier where the department determines such data is applicable to a particular community water system. DHS 157.96(3)(b)4.4. If the average annual maximum contaminant level for man-made radioactivity specified in sub. (1) (b) is exceeded, the operator of a community water system shall give notice to the department under sub. (7) and to the public as required by sub. (8). Monitoring at monthly intervals shall be continued until the concentration no longer exceeds the maximum contaminant level or until a monitoring schedule as a condition to a variance, exemption or enforcement action becomes effective. DHS 157.96(4)(4) Alternative analytical techniques. With the written permission of the department concurred in by the administrator of the U.S. environmental protection agency, an alternative analytical technique may be employed. An alternative technique shall be acceptable only if it is substantially equivalent to the prescribed test in sub. (1) in both precision and accuracy as it relates to the determination of compliance with any maximum contaminant level. The use of the alternative analytical technique may not decrease the frequency of monitoring required by sub. (3). DHS 157.96(5)(5) Approved laboratories. For the purpose of determining compliance with this section, samples shall be considered only if the samples have been analyzed by a laboratory approved by the department. DHS 157.96(6)(6) Monitoring of consecutive public water systems. When a public water system supplies water to one or more other public water systems, the department of natural resources may modify the monitoring requirements imposed by this section if the interconnection of the systems justifies treating them as a single system for monitoring purposes. Any modified monitoring shall be conducted under a schedule specified by the department of natural resources and concurred in by the administrator of the U.S. environmental protection agency. DHS 157.96(7)(a)(a) Routine reports. Except where a shorter reporting period is specified in this section, a supplier of water shall report the results of a test, measurement or analysis required to be made under this section to the department within 40 days following the test, measurement or analysis. DHS 157.96(7)(b)(b) Noncompliance reporting. A supplier of water shall report to the department within 48 hours noncompliance with any provision of this section, including failure to comply with monitoring requirements. DHS 157.96(7)(c)(c) Exceptions. A supplier of water is not required to report analytical results to the department when the department performs the analysis. DHS 157.96(9)(9) Record maintenance. A supplier of water shall maintain records as prescribed in s. NR 809.82. DHS 157.96(10)(10) Variance and exemptions. Variances and exemptions may be granted from any requirement regarding a maximum contaminant level for radioactivity as prescribed in ss. NR 809.90 and 809.91. subch. XV of ch. DHS 157Subchapter XV — Physical Protections of Category 1 and Category 2 Quantities of Radioactive Material DHS 157.9700(1)(a)(a) A licensee that possesses a quantity of radioactive material at or above the category 2 quantity of radioactive material threshold shall establish, implement, and maintain an access authorization program that meets the requirements of this subchapter. DHS 157.9700(1)(b)(b) An applicant for a new license and a licensee that would become newly subject to the requirements of this subchapter upon application to amend its license shall implement the requirements of this subchapter as appropriate and be inspected by the department before taking possession of a category 1 or category 2 quantity of radioactive material. DHS 157.9700(1)(c)(c) A licensee that has not previously implemented the physical protection license condition requirements or been subject to the provisions of this section and ss. DHS 157.9701 to 157.9706 shall implement the provisions of this section and ss. DHS 157.9701 to 157.9706 before aggregating radioactive material to a quantity that equals or exceeds the category 2 threshold. DHS 157.9700(2)(2) General performance objective. The licensee’s access authorization program shall ensure that the individuals specified in sub. (3) (a) are trustworthy and reliable. DHS 157.9700(3)(a)1.1. An individual whose assigned duties require unescorted access to category 1 or category 2 quantities of radioactive material or to any device that contains the radioactive material. DHS 157.9700(3)(c)(c) Except as provided in par. (d), a licensee shall approve for unescorted access to category 1 or category 2 quantities of radioactive material only those individuals with job duties that require unescorted access to category 1 or category 2 quantities of radioactive material. DHS 157.9700 HistoryHistory: CR 16-078: cr. Register January 2018 No. 745, eff. 2-1-18; renumbered from DHS 157.100 under s. 13.92 (4) (b) 1., Stats., and correction in (1) (c), (3) (a) (intro.), (b), (d) made under s. 13.92 (4) (b) 7., Stats., Register January 2018 No. 745. DHS 157.9701(1)(a)(a) A licensee shall implement the requirements of this subchapter for granting initial or reinstated unescorted access authorization. DHS 157.9701(1)(b)(b) An individual who has been determined to be trustworthy and reliable shall complete the security training required under s. DHS 157.9708 (3) before being allowed unescorted access to category 1 or category 2 quantities of radioactive material. DHS 157.9701(2)(a)(a) Only a reviewing official may make trustworthiness and reliability determinations that allow individuals to have unescorted access to category 1 or category 2 quantities of radioactive materials possessed by a licensee. DHS 157.9701(2)(b)(b) Each licensee shall name one or more individuals to be a reviewing official. After completing a background investigation on the reviewing official, the licensee shall provide to the department, under oath or affirmation, a written certification that the reviewing official is deemed trustworthy and reliable by the licensee. The fingerprints of the named reviewing official shall be taken by a law enforcement agency, a federal or state agency that provides fingerprinting services to the public, or a commercial fingerprinting service authorized by a state to take fingerprints. Every 10 years, the licensee shall recertify that the reviewing official is deemed trustworthy and reliable under s. DHS 157.9702 (3). DHS 157.9701(2)(c)(c) The licensee shall permit its reviewing official to have unescorted access to category 1 or category 2 quantities of radioactive materials or access to safeguards information or safeguards information-modified handling, if the licensee possesses safeguards information or safeguards information-modified handling. DHS 157.9701(2)(d)(d) A reviewing official may not approve other individuals to act as a reviewing official. DHS 157.9701(2)(e)(e) A reviewing official does not need to undergo a new background investigation before being named by a licensee as the reviewing official if any of the following apply: DHS 157.9701(2)(e)1.1. The individual has undergone a background investigation that included fingerprinting and a FBI criminal history records check and has been determined to be trustworthy and reliable by the licensee. DHS 157.9701(3)(a)(a) A licensee may not initiate a background investigation without the informed and signed consent of the individual. This consent shall include authorization to share personal information with other individuals or organizations as necessary to complete the background investigation. Before making a final adverse determination, the licensee shall provide the individual with an opportunity to correct any inaccurate or incomplete information that is obtained during the background investigation. A licensee does not need to obtain a signed consent from those individuals that meet the requirements of s. DHS 157.9702 (2). A signed consent shall be obtained before any reinvestigation. DHS 157.9701(3)(b)(b) The subject individual may withdraw consent to a background investigation at any time. If an individual withdraws consent for a background investigation, the licensee shall inform the individual of all of the following: DHS 157.9701(3)(b)1.1. The licensee may not initiate any elements of the background investigation that were not in progress at the time the individual withdrew consent. DHS 157.9701(3)(b)2.2. A withdrawal of consent for a background investigation is sufficient cause for denial or termination of unescorted access authorization.
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