UpTown Cares

Los Angeles County, CA

Water Filtration in Sherman Oaks, CA

Sherman Oaks sits on LADWP, the same utility that serves most of the southern San Fernando Valley. The supply is chloraminated rather than chlorinated, which is the single biggest factor in how a whole-home carbon filter has to be sized here. Standard activated carbon is not enough; the carbon stage has to be catalytic carbon to strip chloramine cleanly.

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The water supply in Sherman Oaks

Sherman Oaks is served by Los Angeles Department of Water and Power. Sherman Oaks runs on the LADWP distribution system, a blend of State Water Project deliveries from Northern California, Los Angeles Aqueduct flows from the Eastern Sierra, Colorado River water from Metropolitan Water District, and local San Fernando Basin groundwater. LADWP disinfects with chloramine rather than free chlorine.

Common local concerns

  • Chloramine disinfection residual, with TTHM 34.4 ppb HLRAA and HAA5 14.9 ppb per the LADWP 2024 CCR
  • Hardness at 6 GPG (112 ppm as calcium carbonate) for the MWD Jensen share of the supply blend
  • Arsenic averaging 3.5 ppb across the distribution (up to 8.4 ppb in some sample zones, MCL 10)
  • Hexavalent chromium (Chromium-6) at trace levels (below 0.4 ppb) in the LADWP 2024 CCR

Read the Los Angeles Department of Water and Power water-quality page

Services available in Sherman Oaks

Cities covered under Sherman Oaks

Sherman Oaks, Van Nuys, Valley Glen.

Nearby SFV areas we cover

UpTown Cares is a for-profit clean-water initiative. The Peggy Beatrice Foundation is a separate 501(c)(3) nonprofit; UpTown Cares is its proud partner, not part of the 501(c)(3).

Author: UpTown Cares Team. Service area: Los Angeles County, California.