Water Line, Sewer, and PG&E Conduit Trenching in Placer County
Underground utility work in Granite Bay and Placer County looks simple from the surface. Dig a trench, lay a pipe, and backfill. In practice, the wrong trench depth causes a failed inspection. The wrong bedding material causes pipe movement and joint failure. Digging without a utility location can cut through an active PG&E power line, a fiber optic trunk, or a pressurized water main. Each of those mistakes costs thousands of dollars and shuts your project down.
We dig to the correct depth and slope for each line type. Next, we lay the right bedding material under each pipe. Also, we compact the backfill in lifts so the trench does not settle and crack your driveway or landscaping over time. We coordinate with your inspector, your plumber, and your electrical contractor so the job passes on the first visit.
Need utility trenching in Granite Bay or Placer County? Call (916) 740-7992 or use our free Utility Trenching Cost Calculator to estimate your project before you contact your utility provider.
- CSLB Licensed #268555
- 50+ Years
- Granite Bay & Placer County
- 5 Star Service
Water Line and Sewer Lateral Trenching
We excavate trenches for water service lines and sewer lateral connections. Each trench is laser-leveled to the correct depth and slope. For sewer laterals, we verify the gravity slope before we lay any pipe. Next, we bed the pipe in clean sand or pea gravel per Placer County Public Works standards. Then we compact the backfill in 12-inch lifts so the surface does not settle.
What we include:
- Water service line trenching (HDPE, copper, or PVC pipe)
- Sewer lateral trench to the municipal connection point
- Gravity slope laser verification before pipe placement
- Sand or pea gravel bedding per utility district standards
- Compacted backfill in 12-inch lifts
- Coordination with Placer County or city utility inspector
PG&E Electrical Conduit and Telecom Trenching
Granite Bay is in PG&E territory. All underground electrical service for homes, ADUs, barns, and well pumps must be trenched to PG&E’s depth and conduit specifications. We know PG&E Distribution Engineering Standards and coordinate with your electrician and PG&E’s service planning team. This means no rework after your trench is backfilled.
We also install telecom conduit sleeves for fiber optic, coaxial, and data lines. Also, we cut transformer vault pads for service upgrades on larger parcels.
What we include:
Septic Tank and Leach Field Trenching
We excavate septic tank pits and leach field trench networks to your system designer’s specifications. Every Placer County septic installation requires perc test results and a layout drawing from a licensed septic designer. We work from those designer drawings, match trench depth and slope to the soil data, and coordinate with Placer County Environmental Health for inspection scheduling.
What we include:
Hardpan and Rock Trenching
Standard trenching equipment stops at Granite Bay’s decomposed granite or Yuba County’s dense clay hardpan. We keep rock hammer attachments and high-capacity hydraulic excavators on standby for conditions that standard crews cannot cut. We also set up temporary dewatering pumps on trenches that hit seasonal high water tables before pipe placement begins.
What we include:
Agricultural Irrigation and Rural Utility Trenching
Rural Placer County and Yuba County properties often need irrigation mainlines, water district supply lines, and well pump service trenches that residential utility contractors do not handle. We trench for agricultural drip irrigation mainlines, gravity-fed water system supply pipes, and well pump cable conduit on large rural parcels.
What we include:
We Call 811 Before Every Single Dig
California law requires all excavators to contact Underground Service Alert (USA) at 811 at least two business days before digging. This triggers a utility locate. Crews from PG&E, AT&T, your water district, and other providers mark all buried lines within 48 hours.
Pina Excavating initiates every location request before mobilization. We never skip this step. Here is what can happen when a crew digs without a locate:
| What Gets Hit Without 811 | Consequence |
|---|---|
| Active PG&E underground power line | Electrocution risk, outage, repair liability over $10,000 |
| Fiber optic trunk line | Neighborhood service outage, carrier damage claims |
| Pressurized water main | Flooding, emergency repair, project delay |
| Gas distribution line | Evacuation risk, emergency response, legal liability |
Our protocol: 811 request submitted, mark locations confirmed by field supervisor, dig begins. Every job, every time.
Trench Work That Passes Inspection the First Time
Rural Placer County and Yuba County properties often need irrigation mainlines, water district supply lines, and well pump service trenches that residential utility contractors do not handle. We trench for agricultural drip irrigation mainlines, gravity-fed water system supply pipes, and well pump cable conduit on large rural parcels.
We document trench depth, bedding type, pipe placement, and backfill compaction at each inspection stage. We coordinate with your plumber, electrician, and utility contacts so the inspection schedule stays on track. This means your project moves forward without waiting for a re-inspection appointment.
Utility Trenching Service Areas
We serve the full Placer County corridor from Granite Bay to the Sierra foothills. Our crews regularly work in:
Contact Us Today:
- (916) 740-7992
- mikepinaemail@yahoo.com
- Granite Bay & Placer County
Our Service Areas in Granite Bay & Placer County:
- Granite Bay
- Roseville
- Rocklin
- Lincoln
- Auburn
- Loomis
- Newcastle
- Penryn
- Folsom
- El Dorado Hills
- Citrus Heights
- Weimar
- Marysville
- Olivehurst
- Yuba City
Ready to Trench? Let's Start With a Free Estimate.
Call Pina Excavating today to schedule a free on-site estimate for your utility trenching project in Granite Bay or Placer County.
Frequently Asked Questions
Do you call 811 before every dig?
Yes, always. We submit the USA North 811 utility locate request before every project. We confirm all marked line positions with the field supervisor before the first bucket goes in the ground.
Can you trench through Granite Bay's decomposed granite?
Yes. We use a CAT 308 excavator with a rock hammer attachment for DG layers. We assess soil conditions during every free site visit so pricing includes the right equipment for your property.
How deep do PG&E electrical conduit trenches need to be?
PG&E Distribution Engineering Standard 721-7 requires a 24-inch minimum depth for 120/240V residential conduit in non-paved areas and 30 inches under driveways. Specifications vary by voltage and installation type. We coordinate directly with PG&E service planning.
Do you handle septic trench work in Placer County?
Yes. We excavate septic tank pits and leach field trench networks to your designer’s specifications. We coordinate with Placer County Environmental Health for inspection scheduling.
How long does utility trenching take on a Granite Bay residential project?
A standard water or sewer service trench typically takes one to two days. Septic system trenching takes two to four days. Larger agricultural or commercial projects are quoted individually.