Application for Secondary Dwelling/Accessory Dwelling Unit (ADU) (LU74)

When submitting to obtain Septic/Onsite Wastewater Treatment System (OWTS) approval from DEH for your proposed secondary dwelling/accessory dwelling unit (ADU), please provide the following:

1. A completed Land Use Service Application
2. One (1) copy of site plans to scale (1” = 20’). Plans must include:
   1. Proposed Septic/OWTS upgrades as required
   2. Location of existing septic tank and leachfield (As-built) 
   3. Scope of proposed building project
   4. Minimum setbacks as required on page 3.11 & 3.12 of the Onsite Systems Manual
   5. Approved water supply (well/public water)
   6. Any additional requirements, as detailed in the Onsite Systems Manual
3. One (1) copy of proposed floor plans
4. Additional soil testing may be required to determine minimum sizing and setbacks of Septic/OWTS by completion of one or more of the following:
   1. Site assessment
   2. Soil analysis
   3. Percolation testing (completed by REHS, Professional Civil Engineer, or Professional Geologist)
5. Current (within last 3 years) Septic Pumper’s Report including 30-minute water test if existing Septic/OWTS is to be utilized
6. Once all requirements have been completed and plans are ready for an approval stamp, additional copies (4) will need to be submitted.

Three (3) stamped copies are to be picked up and taken to the applicable jurisdiction’s Planning/Building Department for inclusion in the building packet.

NOTE: An onsite inspection may be scheduled for verification of minimum requirements. Additional fees and requirements may apply. All applicable fees must be paid in full prior to any services provided by DEH (inspections, plan reviews, approvals, etc.). Projects/Submittals are reviewed in the order received - with the exception of septic system failures.

Applicable fees:

PE	Amount	Description
SEPTIC/OWTS FEASIBILITY:
LU01	$615	Site Assessment
LU02	$615	Soil Analysis
LU06	$894	Percolation tests (up to 6 holes)
PLAN REVIEW:
LU08	$336	Geological Technical Report Review (if slope >20%)
LU13	$1006	Land Use Plan Check: Commercial Construction
LU14	$559	Land Use Plan Check: New Residential Construction
LU18	$223	Land Use Plan Check: Resubmittal
LU19	$1006	Land Use Plan Check: Pump System Review
SEPTIC/OWTS PERMIT (To be collected at time of Building Permit Issuance):
LU22	$2,068	Residential Septic/OWTS Construction Permit
LU24	$2,458	Commercial Septic/OWTS Construction Permit
LU26	$3,015	Alternative Septic/OWTS Construction Permit (≤ 20% slope)
ADDITIONAL FEES:
LU93	$223	File Review (hourly)
LU96	$223	Consultation/Additional Field Time (hourly)

If modification to existing system is permitted:

SEPTIC/OWTS PERMIT (To be collected at time of Building Permit Issuance):
LU28	$1,229	Septic/OWTS Upgrade/Modification (> 50% of system)
LU29	$782	Septic/OWTS Upgrade/Modification (< 50% of system)
LU30	$1,229	Septic/OWTS Upgrade/Modification - Alternative System

We will not begin any work until all the items noted above and payment are received.

Please forward all large/over-sized site-maps and necessary documents to the following:

County of Santa Clara – DEH
RE: (Project number, once assigned)
1555 Berger Drive #300
San Jose, CA  95115