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The Montana Department of Environmental Quality (DEQ) presents the Record of Decision selected remedial action for the BSS in Bozeman, Montana and was The Safe Drinking Water Act, 42 USC §§ f et seq., and the National. disciplinary action as provided in and , MCA, and ARM , amended, 42 USC section f through j (38) "Sanitary survey". Residents of the subdivision between Clancy and Montana City say . a community-based setting, based on legislative intention and action to.


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Perry, personal communication, Murphy, personal communication, Sample daily or as frequently as possible.

Consider sampling after each major treatment process and in the distribution system L. Patterson, personal communication, Table 2 presents various states' advice for determining the potential ACTION MONTANA E 300F of a cyanobacterial bloom. ACTION MONTANA E 300F observations such as visual and olfactory are common, as well as physically noticeable changes like the weather and increased treatment needs. Noted changes include increased disinfection byproduct, increased chlorine demand, increased coagulant dose, and reduced filter run times.

One of the most noticeable visual indicators is water that looks like blue—green tinted paint.


Even though states are searching for more available information, helpful resources do exist, as shown in Table 3. The assessment tools and management plans can help direct state primacy agencies to make decisions ACTION MONTANA E 300F when and where to sample and establish sampling frequency.

They can also aid in determining a state's level of risk through assessment of source water monitoring and ACTION MONTANA E 300F presence during the treatment process. Many states have developed their own guidance as well to act as a tool for the public and water systems and to define internal protocols.

As shown in Figure 629 states are collecting occurrence data, which is helpful in determining risk and designing and updating appropriate plans moving forward. UCMR4 requires surface water systems serving a population of greater than 10, and a subset of smaller systems identified by USEPA ACTION MONTANA E 300F take samples twice a month for four consecutive months, totaling eight sampling events.


Data from UCMR4 will be helpful in determining cyanotoxin risks to some degree, but because only finished water monitoring is required, results from UCMR4 will not assist states in assessing source water risks, which is critical to emergency preparedness and understanding the potential for contamination. Table 4 shows the various ways in which occurrence data are obtained in each state. In the five states where data are reported by utilities, the utilities sample and send the samples to a contracted laboratory in three states Arizona, Oregon, and Washingtonand ACTION MONTANA E 300F other two states Michigan and Utah did not specify where testing is conducted.

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In California, the process varies throughout the state. The survey did not determine how many samples are collected annually in each state.

Table 5 displays the various analytical methods recommended by states when testing for the presence of cyanotoxins. Strip tests and field kits are commonly used for initial testing, and ELISA is typically used in confirmation samples. Figure 7 notes different time frames for receiving results based on state experiences. For this reason, some states mentioned analytical insufficiencies as an aspect of cyanotoxin management that needs improvement.

ACTION MONTANA E 300F 8 addresses transparency with consumers regarding the occurrence of cyanotoxin detections.


Fifteen states reported to have publicly accessible results of cyanotoxin monitoring. Some of New York State's county health departments have publicly accessible test results, and the state has helped water systems ACTION MONTANA E 300F make test results publicly accessible. Allowing the public to access this information increases transparency and acts a tool for the public to make informed choices.

Montana: Montana Oil and Gas Statute

However, New Hampshire has recognized that, while its database is accessible, it is not easy to use. Both point and nonpoint source pollution and other ACTION MONTANA E 300F conditions, such as rainfall, influence nutrient concentrations. Inflow from upstream land and water bodies can affect downstream water quality.

Because of this, cyanotoxins can impair water distant from where the bloom occurred. Reducing nutrient input is essential in planning strategies to manage and mitigate cyanobacterial blooms Graham et al. Excess ACTION MONTANA E 300F can come from several anthropogenic sources such as wastewater discharge, domestic landscaping, urban runoff, ACTION MONTANA E 300F fertilizer and manure runoff from agricultural practices.

To reduce risks to public health and control water treatment costs, there is an opportunity for states, water systems, and the agriculture community to collaborate in protecting drinking water quality concerns at the source. Other forms of barriers to prevent heavy nutrient loads in source water include wetlands and streamside buffers and improvement in fertilizer timing and reduction of the amount of application.

Watershed management practices such as reducing nutrients from wastewater effluent and agricultural runoff can help achieve nutrient limits. Other good watershed management includes minimizing the use of fertilizers, curbing erosion through improved techniques of plowing, and preserving a densely vegetated buffer strip around the water body WHO,

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