CSA70 S3 - Lytle
community of Lytle Creek is situated entirely within the San Bernardino
National Forest. The CSA 70 Improvement Zone
S-3, is located in the eastern San Gabriel Mountain Range, approximately
fourteen miles northwest of the City of San Bernardino.
elevations in Lytle Creek Canyon vary from 2,600 feet to over than 5,000
feet. Lytle Creek Canyon includes communities known as
Happy Jack, Scotland, Bonita and Applewhite Campground.
wastewater collection system consists of approximately 14,400 LF of 4-inch
house laterals, approximately 3,500 linear feet (LF) of 8-inch gravity sewer
mains, approximately 2,000 LF of 6” gravity sewer mains, approximately
1,300 LF of 6” force main, approximately 2,600 LF of 4” force main, and
two lift stations. The
collection system discharges to the Lytle Creek WWTP, which was designed for
a maximum flow of 160,000 gallons per day (gpd). The wastewater treatment
consists of preliminary treatment with screening and a comminutor, secondary
treatment with an oxidation ditch and clarification, two percolation ponds,
and sludge drying beds.
wastewater treatment plant is supplied with fresh water for plant use from
an onsite 400-foot deep well.
1976, the Board of Supervisors
were presented with two alternatives for the wastewater facilities plan for
CSA No.70, Improvement zone S-3, Lytle Creek, San Bernardino County,
California. Prior to the
construction of the sewer collection facilities, the wastewater system was
segregated into sanitary wastes or black wastes and grey water.
Sanitary wastes were
pumped from holding tanks on an as needed basis to County’s Cajon
landfill; whereas grey wastes, which were about 90% of wastewater. were
disposed of through on-site grease traps and leach
The California Regional Water Quality Control Board (RWQCB), Santa Ana
Region on December 11, 1981 adopted Board Order 81-228, which established
Waste Discharge Requirements for the Lytle Creek WWTP.
Prior to the adoption of Board Order No. 81-228 (WDR 81-228), the
County of San Bernardino, Department of Special Districts submitted a Report
of Waste Discharge, dated September 30, 1981, for the proposed discharge of
treated sewage effluent from its Lytle Creek WWTP together with the EIR.
Upon review of the EIR, the Board found that the Project would not
have significant environmental impacts on water quality if conducted within
the provisions of order No. 81-228.
continued operation of the Lytle Creek wastewater collection system and WWTP
are vital to the health and safety of persons living within the Lytle Creek
drainage basin. Without adequate and operational sanitation facilities, the
possibility exists of contamination of the
groundwater from sewage seepages and overflows. Many of the people living within the valley rely on
groundwater as the potable water source. WDR
95-32 prohibits the discharge of wastes into Lytle Creek unless an exemption
is granted. County Health
regulations require any dwelling within 200 feet of an existing sewer to
connect to the sewer.