The Santa Ynez Community Plan (2009) is one document HTO refers to when working on the septic system pollution of the Santa Ynez groundwater basin The plan explicitly states:

Within the Santa Ynez Valley Community Plan Area, the communities of Los Olivos, Ballard, Janin Acres, and east of Santa Ynez Township have been designated Special Problem Areas due to constraints and/or historic problems with the use of onsite wastewater disposal systems (Figure 17). The onsite sewage disposal system constraints predominant in the Special Problem Areas not only raise public health and safety concerns regarding the potential threat of impacts to both surface and groundwater resources, but also represent land use and economic constraints limiting the development of both residential and commercial uses in the townships.