incorporated into the system to reduce nitrogen in the wastewater prior to subsurface dispersal. The following items are needed for EHB staff to assess the feasibility of a new OWTS.

• OWTS Feasibility Report (see section 5.9 Site Evaluation and Soil Characteristics) at a minimum the report shall include:
  • A minimum of one deep groundwater monitoring boring (LAMP Section 5.9.1, Soil Depth and Characteristics).
  • A site evaluation, soil profile analysis and percolation testing shall be completed for each of the areas proposed to accommodate the required dispersal systems: primary dispersal field area and expansion area(s) (Section 5.9.2, Percolation Testing)
  • When the project will generate more than 1,000 gallons of wastewater per day, the soil and percolation testing workplan should be submitted to the EHB for review and acceptance prior to commencing work to ensure sufficient data will be collected.
  • When more than 2,500 gallons or more of wastewater is generated per day on the project site, a cumulative impact study shall be completed to evaluate potential impacts to groundwater, in accordance with Monterey County LAMP, Section 5.2.1.
• OWTS (septic system) design by a qualified professional. Depending on the unit(s), kitchen and laundry facilities, it likely that we will estimate 75 gallons of wastewater generation per occupant per day.
• If an existing OWTS on the property is slated for continued use, EHB will require that a performance evaluation (including minimum 30-minute hydraulic load test) be completed by a qualified OWTS professional to demonstrate the system is adequate to serve the proposed use. The Performance Evaluation Guidelines and approved form is available at www.mtyhd.org/OWTS.

   

  Domestic (Potable) Water

  It is important to understand that water source and permit requirements will vary depending on the size and extent of your proposed employee housing facility. Please review the Water System Classification guide to help you understand the type of water system permit that may be required. The following information will provide foundational information, that is, the basic information necessary to determine if the water source is feasible to serve the development (a reliable, potable supply of water is required prior to EHB approval of any new construction permits that include plumbing).

• Well Completion Report. Please provide a copy of the well completion report and specify the APN and address associated with the well. Wells proposed to serve new water systems must be able to demonstrate that they have a minimum 50’ sanitary seal.
• Source Capacity Testing. Depending on the well’s construction and estimate source capacity, a Source Capacity Test may be required. To determine well yield for the new dwelling unit(s), the well shall first undergo a minimum 8-hour continuous source capacity test. A representative of the Environmental Health Bureau shall witness the source capacity tests. The applicant shall pay all associated fees to the Environmental Health Bureau. Application materials and further information is available on the website at: http://www.mtyhd.org/water (search for: source capacity testing procedures for water wells).
• Water Quality Testing (Title 22)

  The following water samples need to be taken (new/current samples results are needed). Analyses must be performed by a lab certified by the State of California. This list also includes independent samplers you may hire to test for you. You may also have a third party pull the samples for you if they are knowledgeable in water sampling and have a professional license.

  • Coliform Bacteria Analysis
  • Inorganic Chemical Analysis: Aluminum, antimony, arsenic, asbestos, barium, beryllium, cadmium, chromium, cyanide, fluoride, mercury, nickel, nitrate (NO3), nitrite, (NO2), perchlorate, selenium, andthallium. Asbestos and cyanide may be waived if determined to not be vulnerable.

• Secondary Standards: Total dissolvedsolids, specific conductance, chloride, sulfate, calcium, magnesium, potassium, sodium, iron, manganese, carbonate, bicarbonate, hydroxide alkalinity, total hardness, MBAS, copper, zinc, silver, color, odor, turbidity, pH. MTBE and thiobencarb are also required, but may be waived if determined to not be vulnerable.
• Volatile Organic Chemical Analysis (community and nontransient-noncommunity systems only)
• Synthetic Organic Chemical Analysis: Atrazine, Alachlor, Bentazon, Carbofuran, Diquat, Simazine, 2,4-D, and 1,2,3-Trichloroproane. (community and nontransient-noncommunity systems only).
• Gross Alpha (community and nontransient-noncommunity systems only). Uranium and radium testing may also be required depending on gross alpha results.
• Radium 228 (community systems only)

• Additional information will be required if the EHB determines that a water system permit is required. The table below provides a very basic overview of the requirements a water source must meet to serve new development or a water system.

SUMMARY OF REQUIREMENTS FOR A NEW WATER SOURCE

* This table is intended to provide a broad overview of potential requirements that may apply to your project but in no way shall be construed to replace of substitute for the standards set forth by Monterey County Code or Title 22 of the California Code of Regulations.

** State Water Resource Control Board – Division of Drinking Water (DDW)

For additional information, please contact Ms. Cheryl Sandoval, Supervisor for Drinking Water Protection Services, at (831) 755-4452.