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3.12. Pollutant Sources Point Sources The Minnesota Pollution Control Agency (MPCA) is charged with regulating businesses that have applied for and received different types of environmental permits and registrations from the MPCA. The MPCA has also been tracking potentially contaminated sites since the early 1980s when major federal and state cleanup programs were created. Figure 25 depicts the locations of properties that have active environmental permits or have a record related to a potential environmental hazard. Data shown in Figure 25 is provided by the MPCA. Additional information of specific sites can be found through the "What's in My Neighborhood" feature on the MPCA website. Potential environmental hazards vary from properties where a spill or problem has already been cleaned up, to those currently being investigated or cleaned up. In addition, some sites depicted in Figure 25have no record of known spills or problems; but rather mark locations where hazardous materials or wastes are used or generated. The most common types of sites in Lino Lakes are small to minimal quantity hazardous waste generators, multiple activity sites, and tank sites (Table 7). The following descriptions are intended to elucidate sites illustrated in Figure 25 and provide the description given by the MPCA for each site type listed in the figures legend. CERCLIS: CERCLIS sites are places that are listed in the federal Comprehensive Environmental Response, Compensation and Liability Information System. This means that they are or were suspected of being contaminated. The CERCLIS database contains information on preliminary assessments, site inspections, and cleanup activities for these sites. After CERCLIS sites are investigated, they may be elevated to state or federal Superfund lists, or it may be determined that no action is necessary. Superfund Projects: Superfund projects occur where known or suspected environmental contamination threatens public health, welfare or the environment. The Superfund Program identifies, investigates and determines appropriate cleanup plans for these sites. Superfund projects often occur at abandoned or uncontrolled sites, for instance, where the business that polluted a site no longer exists. Federal Superfund sites are on the U.S. Environmental Protection Agency's (EPA) National Priority List (NPL), while State Superfund sites are on Minnesota's Permanent List of Priorities (PLP). Minnesota Pollution Control Agency (MPCA) staff may work with EPA staff or other state agencies to investigate and clean up these sites. In Minnesota, sites which may have been contaminated by agricultural chemicals are managed by the Minnesota Department of Agriculture (MDA). State Assessment Site: State Assessment sites are places that the Minnesota Pollution Control Agency (MPCA) Site Assessment staff have investigated because of suspected contamination. The sites investigated include abandoned industrial properties, small commercial businesses and publicly -owned land (note that petroleum -contaminated sites are investigated by MPCA Tanks and Leaks staff). These sites may be referred to the Site Assessment program by the Voluntary Investigation and Cleanup (VIC) program, the Petroleum Remediation program, Minnesota Duty Officer Reports or citizen complaints. Site Assessment staff do an initial assessment, and then determine if further action is needed. If a site poses a threat to human health or the environment, it is referred to CERCLIS, Superfund, RCRA Cleanup or VIC. Unpermitted Dump Site: Unpermitted dump sites are landfills that never held a valid permit from the Minnesota Pollution Control Agency (MPCA). Generally, these dumps existed prior to the permitting program established with the creation of the MPCA in 1967. These dumps are not restricted to any type of waste, but were often old farm or municipal disposal sites that accepted household waste. State assessment staff have investigated many of these dump sites. Voluntary Investigation & Cleanup (VIC) Site: The Voluntary Investigation and Cleanup (VIC) Program is a non -petroleum brownfield program. VIC provides technical assistance to City of Lino Lakes SWMP 1 December 20151 53