Updated: November 2025
Septic design engineers provide specialized civil engineering services creating onsite wastewater treatment systems for properties throughout Upland, Rancho Cucamonga, Claremont, and foothill communities where municipal sewer service is unavailable or impractical. Our licensed Professional Engineers (PE) with over 20 years of combined experience understand California's stringent onsite wastewater regulations, soil percolation requirements, and system design standards ensuring residential septic systems safely treat and dispose of household wastewater protecting groundwater and public health. Whether you're building a custom home in Upland's hillside areas, developing rural property, or replacing a failed septic system, professional septic engineering ensures code compliance, health department approval, and long-term system performance.
Upland's unique character—combining urban development in valley areas with rural residential properties in foothill locations serving a population of 79,000 with median home values around $630,000—creates situations where septic systems remain necessary despite proximity to sewered areas. The city's foothill topography, particularly properties near the San Gabriel Mountains, often lack practical sewer connections requiring properly engineered onsite wastewater treatment. Understanding civil engineering services and septic-specific requirements is essential for successful rural residential development and avoiding costly system failures.
What Are Septic Design Engineers and What Services Do They Provide?
**Direct Answer:** Septic design engineers are licensed Professional Engineers or specialized civil engineers who design onsite wastewater treatment systems (septic systems) including conventional septic tanks with leachfield disposal, alternative treatment systems, advanced treatment units, and specialized systems for challenging sites. In California, septic engineers prepare plans and calculations demonstrating compliance with Regional Water Quality Control Board standards, county health department requirements, and local regulations. Services include site evaluation, percolation testing coordination, system design and sizing, permit application preparation, construction observation, and final inspection support ensuring safe, effective wastewater treatment for properties in Upland and throughout San Bernardino County.
Septic engineering represents a specialized subset of civil engineering requiring unique expertise beyond general site development knowledge. While many civil engineers understand grading, drainage, and utilities, septic system design demands specific understanding of:
- Wastewater treatment processes and biochemistry
- Soil absorption characteristics and percolation rates
- Groundwater hydrology and contamination pathways
- Regional Water Quality Control Board regulations (Lahontan RWQCB for Upland area)
- County health department septic permit requirements
- Alternative system technologies and applications
- Long-term system performance and maintenance
California's environmental regulations make septic design particularly complex compared to many other states. The state's high population density, limited water resources, and groundwater quality concerns drive stringent requirements ensuring septic systems don't contaminate drinking water supplies or create public health hazards.
In Upland specifically, septic systems typically serve:
- **Foothill properties** in areas like San Antonio Heights where rugged topography makes sewer extension impractical
- **Rural residential estates** on larger lots lacking nearby sewer infrastructure
- **Properties in unincorporated areas** beyond municipal sewer service boundaries
- **Agricultural properties** transitioning to residential use
- **Older homes** with existing septic systems requiring replacement when systems fail
Most Upland properties in developed urban areas connect to municipal sewers managed by the Cucamonga Valley Water District. Septic systems primarily serve properties in the city's northern foothill areas or on larger parcels where sewer connections prove economically or physically impractical.
What Types of Septic Systems Require Engineering Design in California?
**Direct Answer:** California septic systems requiring professional engineering design include conventional gravity systems serving homes generating over 3,500 gallons per day, alternative systems using non-traditional dispersal methods (drip irrigation, mounds, sand filters), advanced treatment units providing enhanced wastewater treatment, systems on challenging sites (steep slopes, high groundwater, poor soils), commercial or institutional systems, and replacement systems for failed conventional installations. San Bernardino County and Lahontan Regional Water Quality Control Board require PE-stamped plans for most residential systems exceeding simple conventional designs, ensuring proper engineering for public health and groundwater protection.
Conventional Septic Systems
**System Components:** Traditional septic systems consist of two primary components working together:
**Septic Tank:**
- Watertight underground tank receiving all household wastewater
- Typically 1,000-1,500 gallon capacity for residential use
- Separates solids (sludge settling to bottom) from liquids (effluent)
- Provides primary treatment through settling and anaerobic digestion
- Requires periodic pumping (every 3-5 years) removing accumulated solids
**Leachfield (Drainfield):**
- Network of perforated pipes distributing septic tank effluent into soil
- Excavated trenches filled with gravel containing distribution pipes
- Soil beneath and around trenches provides final treatment through biological processes
- Aerobic bacteria in soil break down remaining organic matter
- Treated water percolates downward eventually reaching groundwater
**Design Requirements:**
- Calculating daily wastewater flow based on home size and occupancy
- Determining required leachfield area based on soil percolation rates
- Designing tank sizing meeting code minimums and providing adequate retention time
- Specifying trench dimensions, spacing, and layout
- Ensuring adequate separation from wells, property lines, buildings, and water features
Upland's variable soil conditions—ranging from sandy soils with excellent percolation to heavy clays with poor absorption—dramatically affect leachfield sizing and design approach.
Alternative Septic Systems
When site conditions prevent conventional system installation, alternative technologies provide solutions:
**Pressure-Dosed Drip Irrigation Systems:**
- Effluent distributed through shallow buried drip tubing
- Pump doses effluent uniformly across larger area
- Useful for sites with shallow soil depth or irregular terrain
- Requires more maintenance (filters, pump) than gravity systems
- More expensive installation but accommodates challenging sites
**Mound Systems:**
- Engineered sand mound constructed above native soils
- Provides treatment area when natural soils are unsuitable
- Effluent pumped into sand mound, treated as it percolates through engineered media
- Required when soils are too slow, bedrock is shallow, or groundwater is high
- Significantly more expensive than conventional systems ($25,000-$45,000 typical)
**Sand Filter Systems:**
- Wastewater filtered through engineered sand media before dispersal
- Provides enhanced treatment for sensitive sites
- Can be open (above-ground) or buried configurations
- Often combined with other dispersal methods
- Higher maintenance requirements than conventional systems
**Seepage Pits (Limited Applicability):**
- Deep excavated pits receiving septic tank effluent
- Effluent seeps through pit sidewalls into surrounding soil
- Allowed only in specific geological conditions with suitable soils at depth
- Prohibited in many areas due to groundwater contamination concerns
- Requires careful engineering preventing groundwater pollution
Advanced Treatment Systems
Some situations require treatment beyond conventional septic tanks:
**Aerobic Treatment Units (ATUs):**
- Mechanical systems providing oxygen to wastewater
- Enhanced biological treatment producing higher-quality effluent
- Often required for very small lots or environmentally sensitive areas
- Requires electrical power and regular maintenance
- More expensive installation and ongoing operational costs
**Nitrogen-Removing Systems:**
- Advanced systems reducing nitrogen concentrations in effluent
- Required in some groundwater protection areas
- Uses multiple treatment stages or specialized processes
- Significantly higher installation and maintenance costs
**Membrane Bioreactor Systems:**
- Cutting-edge treatment producing near-potable water quality
- Very expensive but allows wastewater reuse for irrigation
- Rare in residential applications due to cost and complexity
How Does the Septic System Design Process Work in Upland?
**Direct Answer:** The septic system design process in Upland typically takes 4-8 weeks from initial site evaluation to approved permit-ready plans. The process includes site assessment evaluating topography and constraints, percolation testing determining soil absorption rates, system design sizing tanks and leachfields, preparation of PE-stamped engineering plans, submittal to San Bernardino County Department of Public Health Environmental Health Services, permit review and approval, and construction observation ensuring proper installation. Licensed Professional Engineers coordinate with soil testing contractors, surveyors, health department staff, and property owners throughout the process ensuring successful permitting and system installation.
Phase 1: Site Assessment and Feasibility (Week 1-2)
**Initial Property Evaluation** Septic engineering begins with comprehensive site assessment:
**Topographic Analysis:**
- Site slopes and grading affecting system placement
- Drainage patterns and water flow directions
- Building locations and setback constraints
- Well locations (on-site and neighboring properties)
- Property boundaries and easements
Upland foothill properties often feature significant slopes (10-30%+) requiring careful system location planning. Steep slopes complicate conventional leachfield installation and may necessitate alternative technologies.
**Regulatory Research:**
- Verifying septic systems are permitted (some areas prohibit new systems)
- Identifying applicable regulations (County, RWQCB, city requirements)
- Reviewing property file at County Health Department for existing system information
- Confirming sewer availability (if municipal service exists nearby, connection may be required)
**Setback Requirements:** California and San Bernardino County establish minimum distances from septic system components to various features:
**From Leachfield/Dispersal Area:**
- 100 feet to wells (domestic water wells have largest setback)
- 50 feet to streams, lakes, or wetlands
- 25 feet to property lines
- 20 feet to buildings
- 10 feet to water lines
**From Septic Tank:**
- 50 feet to wells
- 10 feet to property lines
- 5 feet to buildings
Foothill properties with limited usable area often struggle meeting setback requirements, requiring creative system placement or alternative technologies.
**Preliminary System Sizing:**
- Home size (square footage correlates to bedroom count)
- Bedroom count (primary sizing criterion—more bedrooms = more occupants = more wastewater)
- Special features increasing flow (spa, pool, commercial use)
- California Plumbing Code wastewater flow assumptions
Standard residential flow assumption: 150 gallons per bedroom per day. A 4-bedroom home generates approximately 600 gallons daily requiring appropriately sized system.
Phase 2: Percolation Testing and Soil Evaluation (Week 2-3)
**Percolation Test Procedures:** Soil absorption capacity determines leachfield sizing requirements. Testing involves:
**Test Pit Excavation:**
- Excavating test pits at proposed leachfield locations
- Pits typically 12-18 inches diameter, excavated to leachfield depth (usually 3-5 feet)
- Number of pits required varies (typically 3-6 pits for residential systems)
- Soil profile observation documenting soil types at various depths
**Test Execution:**
- Pre-soaking pits overnight ensuring soil saturation
- Filling pits with water to specific depth
- Measuring water level drop over time
- Calculating percolation rate (minutes per inch of water infiltration)
**Results Interpretation:**
- Fast percolation (less than 10 minutes/inch): Excellent drainage, small leachfield
- Moderate percolation (10-60 minutes/inch): Standard design approaches
- Slow percolation (over 60 minutes/inch): Larger leachfield required or alternative system
- Very slow percolation (over 120 minutes/inch): Conventional systems may not be feasible
Upland's varied geology creates diverse soil conditions. Sandy soils in some areas provide excellent percolation while clay soils in others require significantly larger leachfields or alternative technologies.
**Soil Profile Evaluation:**
- Soil texture and composition (sand, loam, clay)
- Depth to bedrock or impermeable layers
- Groundwater depth (mottling or wetness indicators)
- Soil structure and layering
- Presence of hardpan or restrictive layers
Phase 3: System Design and Engineering (Week 3-5)
**System Type Selection:**
- Conventional gravity system (if conditions allow)
- Pressure distribution system (for more uniform loading)
- Alternative system (if site constraints demand)
- Advanced treatment (if water quality protection requires)
**Septic Tank Design:**
- Sizing tank based on daily flow and code requirements
- Specifying tank construction (concrete, fiberglass, or polyethylene)
- Designing inlet and outlet configurations
- Specifying baffles preventing solids discharge
- Incorporating filter mechanisms if required
Standard residential tanks: 1,000-1,500 gallons for 3-5 bedroom homes.
**Leachfield Design:** Detailed engineering determines:
**Absorption Area Calculation:**
- Daily wastewater flow (gallons per day)
- Soil application rate based on percolation test (gallons per square foot per day)
- Required leachfield area = flow ÷ application rate
- Example: 600 GPD ÷ 0.60 GPD/SF = 1,000 square feet required
**Trench Configuration:**
- Number of trenches (typically 3-8 for residential)
- Trench length (usually 50-100 feet per trench)
- Trench width (typically 12-36 inches)
- Trench spacing (minimum 6 feet between trenches center-to-center)
- Trench depth and bottom elevation
**Distribution Design:**
- Distribution box ensuring equal flow to all trenches
- Pipe sizing and slope (typically 4-inch perforated pipe at 0.5-1% slope)
- Gravel envelope surrounding pipes
- Geotextile fabric preventing soil intrusion
- Surface restoration and erosion control
**Reserve Area:** California requires designating reserve leachfield area equal to 100% of initial installation. If primary leachfield fails, reserve area allows system replacement without property becoming unbuildable.
**Hydraulic Profile:**
- House sewer line slope (minimum 1%, or 1/8 inch per foot)
- Tank inlet and outlet elevations
- Distribution box elevation
- Leachfield trench elevations
- Ensuring gravity flow throughout system (or specifying pumps where needed)
Upland's foothill slopes often provide excellent gravity flow opportunities, though steep slopes create construction challenges.
Phase 4: Plan Preparation and Permit Application (Week 4-6)
**Septic System Plan Components:** San Bernardino County requires detailed plans including:
**Site Plan:**
- Property boundaries and dimensions
- Building footprints (existing and proposed)
- Septic tank location with setback dimensions
- Leachfield location showing all trenches
- Reserve area location
- Wells (onsite and nearby properties) with setback dimensions
- Topographic contours
- Scale and north arrow
**System Details:**
- Septic tank specifications and installation details
- Distribution box details
- Leachfield trench cross-sections
- Pipe specifications and installation requirements
- Construction notes and sequencing
**Calculations:**
- Wastewater flow calculations
- Percolation test results and interpretation
- Absorption area calculations
- Hydraulic profile calculations
**PE Certification:** California-licensed PE stamps and signs plans certifying design meets code requirements and accepted engineering standards.
**Submittal to County Health Department:**
- Completed application forms
- PE-stamped engineering plans
- Percolation test results
- Property survey or legal description
- Application fees ($600-$1,200 typical depending on system size)
**Review Process:**
- Setback compliance
- Adequate system sizing
- Proper design methodology
- Soil suitability
- Reserve area adequacy
Review typically requires 2-4 weeks. Minor corrections may be requested requiring plan revisions.
**Permit Issuance:** Upon approval, County issues septic system installation permit allowing construction. Permits remain valid for 1-2 years, requiring renewal if construction doesn't commence promptly.
Phase 5: Construction Observation and Inspection (Week 7-8+)
**Installation Oversight:**
- Pre-construction meeting with contractor
- Excavation inspection verifying proper depths and dimensions
- Tank installation inspection
- Leachfield construction inspection
- Final system inspection before backfilling
**County Inspections:**
- Tank installation inspection (before backfilling)
- Leachfield trench inspection (before pipe installation)
- Final inspection (before backfilling and restoration)
Inspections verify construction matches approved plans and meets installation standards.
**As-Built Documentation:**
- Actual system locations (may differ slightly from plans due to field conditions)
- Tank location measurements from permanent reference points
- Leachfield GPS coordinates or triangulated measurements
- Verification of construction per approved plans
As-built documentation helps future homeowners locate system components for pumping or repairs.
What Are the Septic System Challenges in Upland and Foothill Communities?
**Direct Answer:** Upland and foothill community septic challenges include steep slopes complicating leachfield installation and increasing erosion risks, shallow bedrock limiting leachfield depth and area, variable soil percolation rates requiring site-specific design, seasonal high groundwater in some areas affecting system placement, small lot sizes limiting space for leachfields and reserve areas, wildfire risks affecting system components and vegetation, and proximity to sensitive watersheds requiring enhanced treatment. Professional septic engineers address these challenges through alternative system technologies, creative site planning, engineered solutions for difficult conditions, and compliance with stringent environmental regulations protecting mountain watersheds and groundwater quality.
Steep Slope Challenges
**Construction Difficulties:**
- Equipment access for excavation and material delivery
- Maintaining stable excavations on slopes
- Preventing soil erosion during and after construction
- Ensuring trenches are level (leachfield trenches must be nearly level despite slope)
- Stabilizing disturbed slopes after installation
**Pressure Distribution Benefits:**
- Pump chambers allow systems to be located regardless of grade
- Pressure distribution compensates for site slopes
- More uniform effluent distribution across leachfield
- Reduces hydraulic loading variations
**Downslope Separation Requirements:**
- Minimum 10 feet vertical separation between leachfield bottom and any downslope feature (property line, building, well)
- Prevents effluent surfacing downhill from leachfield
- May significantly increase required setbacks on steep sites
Shallow Bedrock Issues
**Limited Soil Depth:**
- Conventional leachfields require minimum 3-5 feet of suitable soil beneath trenches
- Bedrock closer than required depth prevents adequate treatment
- Effluent may surface or move laterally over bedrock rather than percolating downward
**Alternative Solutions:**
- Mound systems elevating treatment area above native soils
- At-grade systems using imported suitable soil
- Drip irrigation systems utilizing shallower soil depths
- Specialized systems concentrating effluent in limited soil areas
**Blasting Considerations:**
- Very expensive ($50-$150 per cubic yard blasted rock)
- Creates additional challenges (debris removal, surface restoration)
- Rarely cost-effective for residential septic systems
- Usually alternative technologies prove more economical
Variable Soil Percolation
**Geological Diversity:**
- Alluvial fan deposits (excellent percolation)
- Decomposed granite (generally good percolation)
- Clay soils (poor percolation requiring large leachfields)
- Rocky soils (excavation challenges, variable absorption)
**Site-Specific Testing Essential:**
- Percolation testing multiple locations identifies best system placement
- Different areas may have vastly different soil characteristics
- Testing prevents system failures from inadequate soil evaluation
Seasonal Groundwater
**Wet Season Concerns:**
- Winter and spring precipitation raises groundwater tables
- Septic systems must maintain adequate separation to groundwater (minimum 5 feet vertical separation)
- High groundwater during wet seasons affects system performance
- Soil mottling during percolation testing indicates seasonal wetness
**Design Accommodations:**
- Testing during wet season establishing worst-case conditions
- Elevating leachfields above anticipated high groundwater
- Alternative systems less affected by groundwater
- Enhanced treatment if groundwater contact is unavoidable
Small Lot Constraints
**Limited Available Area:**
- Building envelopes consuming substantial land area
- Setback requirements from all features
- Reserve area requirement doubling space needs
- Driveways, landscaping, and other improvements limiting options
**Creative Site Planning:**
- Early septic engineering input during home siting
- Coordinated site planning optimizing system placement
- Alternative systems using less land area (drip irrigation, mounds)
- Variance requests if standard requirements cannot be met (rarely granted)
Understanding grading and drainage planning helps integrate septic systems with overall site development.
Wildfire Risk Areas
**Fire-Resistant Construction:**
- Septic tank vents using fire-resistant materials
- Vegetation management around systems for defensible space
- Access maintenance for fire equipment (affecting system location)
- Post-fire inspection and restoration if systems are damaged
Environmental Sensitivity
**Watershed Protection:**
- Systems must not impact mountain streams or water quality
- Enhanced setbacks from water features in some cases
- Possible requirements for advanced treatment in sensitive areas
- Groundwater protection particularly critical near drinking water sources
How Much Does Septic System Engineering and Installation Cost in Upland?
**Direct Answer (2025 Pricing):** Septic system engineering in Upland typically costs $3,500-$6,500 for design, percolation testing, and permit applications. Complete conventional system installation (engineering plus construction) ranges $18,000-$35,000 depending on system size, site conditions, and access. Alternative systems (pressure distribution, mounds, drip irrigation) cost $25,000-$50,000+ due to additional components and complexity. Costs include engineering design, percolation testing, permits, excavation, tanks, leachfield construction, and final inspection. Challenging sites with steep slopes, limited access, or bedrock may increase costs 30-50% above typical installations.
Engineering and Design Fees
**Septic System Engineering:**
- Standard residential system design: $3,500-$5,000
- Complex sites requiring alternative systems: $5,000-$6,500
- Commercial or large residential systems: $6,500-$12,000+
Engineering fees include:
- Site evaluation and assessment
- Percolation test coordination and interpretation
- System design and calculations
- PE-stamped plan preparation
- Permit application preparation and submittal
- One round of plan revisions if health department requests corrections
**Percolation Testing:** $800-$1,500 for standard residential testing (3-6 test pits)
Testing typically performed by specialized contractors coordinating with engineers. Some engineering firms include testing in comprehensive service packages.
**Survey and Mapping:** $1,200-$2,500 if detailed property survey is required
When accurate site topography and boundary information are unavailable, survey may be necessary for proper system design and permit application.
System Installation Costs
**Conventional Gravity Systems:**
- Small systems (2-3 bedrooms): $18,000-$25,000
- Standard systems (3-4 bedrooms): $23,000-$32,000
- Large systems (5+ bedrooms): $30,000-$45,000
Installation costs include:
- Site mobilization and preparation
- Excavation for tank and leachfield trenches
- 1,000-1,500 gallon concrete or fiberglass septic tank
- Distribution box
- Perforated leachfield pipe (4-inch diameter, 300-600 feet typical)
- Gravel and bedding materials
- Geotextile fabric
- Backfill and site restoration
- County health department permit fees and inspections
**Pressure Distribution Systems:**
- Pump chamber and basin
- Effluent pump (typically 1/2 to 1 HP)
- Control panel and alarms
- Pressurized distribution piping
- Electrical installation to pump chamber
**Mound Systems:**
- All conventional system components
- Imported engineered sand media (100-300 cubic yards typical)
- Mound construction and shaping
- Specialized distribution piping
- Erosion control and vegetation establishment
- Pump system (mounds require pumping)
**Drip Irrigation Systems:**
- Septic tank and pump chamber
- Filter system (required for drip emitters)
- Drip tubing field (extensive shallow-buried tubing)
- Control panel and automation
- Pressure monitoring and alarms
Additional Cost Factors
Site Conditions:
**Steep Slopes:**
- Equipment access challenges
- Additional excavation support
- Erosion control measures
- Specialized construction techniques
**Poor Access:**
- Smaller equipment (less efficient, higher labor)
- Possible hand excavation for some areas
- Material handling challenges
- Cost increases of 30-60% possible
**Bedrock Excavation:**
- Rock excavation: $50-$150 per cubic yard (vs. $8-$15 for soil)
- Substantial cost impacts if significant rock volumes must be removed
**High Groundwater:**
- Dewatering during construction ($2,000-$5,000+)
- Elevated system design and construction
- Additional fill materials
Permits and Fees:
**San Bernardino County Health Department:**
- Standard residential system permit: $600-$1,200
- Large or complex system permits: $1,200-$2,500+
- Inspection fees typically included in permit costs
**Building Permits:**
- Building permit fees if required: $300-$800
Ongoing Costs:
**Maintenance:**
- Septic tank pumping: $400-$700 every 3-5 years
- System inspection: $150-$300 annually for advanced systems
- Filter cleaning: $100-$200 as needed
- Pump replacement: $800-$1,500 every 10-15 years (if system has pump)
**Long-Term Replacement:**
- Leachfield replacement (using reserve area): $15,000-$25,000
- Complete system replacement: $25,000-$45,000
Why Choose AAA Engineering Design for Upland Septic Engineering?
**Direct Answer:** AAA Engineering Design provides California PE-licensed septic system engineering with 20+ years of San Bernardino County experience. We've completed 50+ septic system designs throughout Upland and foothill communities, providing efficient health department permitting through detailed understanding of Lahontan RWQCB requirements, County septic regulations, and challenging foothill site conditions. Our comprehensive civil engineering services integrate septic design with site grading, drainage systems, and overall property development delivering coordinated solutions for rural residential properties throughout San Bernardino County foothills.
Upland and Foothill Septic Expertise
Our septic engineering portfolio includes:
- 50+ completed septic system designs in San Bernardino County
- Upland foothill properties and rural residential throughout region
- Experience with all system types (conventional, alternative, advanced treatment)
- Successful permits through County Health Department and RWQCB
- Projects on challenging sites (steep slopes, bedrock, small lots)
Integrated Civil and Septic Engineering
We provide comprehensive site development services:
- Septic system design and engineering
- Civil engineering for site grading and drainage
- Coordinated design integrating all site systems
- Single-source responsibility eliminating coordination problems
- Efficient project delivery through integrated approach
San Bernardino County Experience
Successful septic permitting requires understanding local requirements:
- 50+ permits through San Bernardino County Health Department
- Knowledge of County septic regulations and procedures
- Familiarity with Lahontan RWQCB requirements
- Established communication with health department staff
- Understanding of common review issues and solutions
Cost-Effective Septic Solutions
Septic systems represent significant investments requiring cost-conscious engineering:
- Appropriate system sizing (avoiding over-design)
- Technology selection optimizing first costs and maintenance
- Strategic site planning minimizing installation challenges
- Value engineering identifying cost savings without compromising performance
Comprehensive Property Development Support
Beyond septic engineering, we support complete property development:
- Structural engineering for custom homes
- Site grading and drainage design
- Driveway and access design
- Retaining walls for hillside properties
- Coordination with architects and contractors
Contact Us for Upland Septic System Engineering
Planning rural residential development or replacing a failed septic system in Upland or San Bernardino County foothills? Our licensed Professional Engineers provide comprehensive septic system design services ensuring health department approval and long-term system performance.
**Serving Upland and Surrounding Foothill Communities:**
- Upland: San Antonio Heights, north Upland foothill properties
- Rancho Cucamonga: Foothill areas and rural properties
- Claremont: North Claremont hillside and rural residential
- Fontana: North Fontana foothill and Lytle Creek areas
- Unincorporated San Bernardino County foothill communities
**Throughout San Bernardino and Riverside Counties:**
- All foothill and mountain communities
- Rural residential throughout both counties
- Custom home properties requiring septic systems
- Replacement systems for failed existing installations
Contact us today for a free consultation on your septic system needs.
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