Wells and Septic Systems in an Auburn-Area Rental: Who Does What

You are the water company now

Inside Auburn city limits, a home usually sits on public water and the city's own sewer system. On a rural lot outside the city, the same kind of house often pulls water from a private well and sends wastewater to a septic tank and leach field. Once you rent that house out, nobody else is watching those systems for you.

The U.S. Environmental Protection Agency says private well owners are responsible for delivering safe drinking water to their households, and that private domestic wells are not regulated by the federal government or by most states. For a landlord, that owner responsibility meets California's habitability law.

Civil Code 1941.1 lists what a rental must have to be livable. Two items matter here: a water supply approved under applicable law that can produce hot and cold running water, and a connection to an approved sewage disposal system. A dead well pump or a backed-up tank is a habitability problem, not a routine service call.

Water testing and the county's permit triggers

No Placer County rule found for this guide requires a well test when a lease starts. The county's well page does say that owners of homes with wells may be required to submit a water sample for bacteriological analysis when building, planning or Environmental Health permits are issued. That sample is checked for total coliform, E. coli and chlorine residual by a state-certified (ELAP) lab.

In practice, the test tends to come up when you remodel, add a bedroom or build a second unit. Drilling a new well is a separate permit, and the county says only a licensed well driller can apply for it.

Between permits, testing is a habit you set. EPA's advice to private well owners is to test every year for total coliform bacteria, nitrates, total dissolved solids and pH, and to test again when:

• any part of the well system is repaired or replaced
• the water's taste, color or odor changes
• conditions near the well change a lot, such as flooding, grading or new construction
• small children or older adults live in the home, since EPA suggests testing more often for them

Septic basics the county and EPA spell out

Placer County Environmental Health permits septic systems for homes where public sewer is not available. Two county points come up for landlords. A supplemental treatment system permitted after January 1, 2005 must get annual maintenance from a service provider. And setbacks apply between structures and the leach field, the tank and the repair area, so a new shed, pool or second driveway can run into the system.

EPA's homeowner guidance says the average household system should be inspected at least every three years by a septic service professional, and household tanks are typically pumped every three to five years. Systems with pumps, float switches or other mechanical parts generally need a yearly inspection.

Thinking about an ADU or another bedroom? The county warns that a septic system may need to be modified, or a new one installed, to handle the addition. Call Environmental Health before you pay for plans. The rental side of that choice is in the main house vs ADU guide.

Splitting the work with your tenant

California puts repairs on the landlord, with one exception worth knowing. Under Civil Code 1941.2, you have no duty to repair a problem when the tenant's substantial failure to meet basic duties, such as using plumbing fixtures properly, substantially caused it. A septic line clogged with wipes or grease may fit, but only if you can show what happened, so clear lease terms and service records matter.

Most careful property managers attach a short well and septic addendum to the lease. Common terms include:

• Only human waste and toilet paper go in toilets; no wipes, grease, cooking oil or medications down any drain.
• No parking or driving on the drainfield, and no new plantings, sheds or pools near it without the owner's written OK.
• Report leaks, running toilets, slow drains, soggy spots in the yard or sewage odors right away.
• Report any change in water pressure, taste, color or smell.
• Leave the well house, pump controls and any treatment equipment alone unless the owner gives written instructions.
• Allow entry, with proper notice, for water sampling, septic inspection, pumping and service visits.
• The owner arranges and pays for routine water tests, septic inspections, pumping and any required annual service.

When the pump quits or the tank backs up

In unincorporated Placer County, tenants can take habitability complaints to County Environmental Health, which lists no potable water and sewage backup among the items a landlord must repair within 48 to 72 hours of notice. For homes inside Auburn, the county sends housing complaints to city code enforcement instead.

State law adds its own pressure. If you do not fix an untenantable condition within a reasonable time after notice, Civil Code 1942 lets a tenant repair it and deduct up to one month's rent, or move out, no more than twice in any 12-month period. Having a pump contractor and a septic service lined up before anything fails keeps those choices with you.

SPMG's services page says repairs are coordinated through "a trusted network of contractors and vendors," and its FAQ says owners are consulted on major repairs. For when to book routine visits during the year, see the seasonal maintenance guide and the post on preventative maintenance.