Electrical and water in same trench?

Plum rite is wrong! They can be in the same trench.

Utiluty/Service lines are required to be buried t 48" where I live.

Indeed, the water must be buried at least 18"

Indeed, the water must be buried at least 18". Unlikely you want your communications to be damaged by accident. As for my house, all communications are lying about 32" below the ground. So you got the point: the deeper - the better. If you are planning to run an electrical line alongside, you need to ask electricians. It shouldn't be a problem, but you can't predict all nuances by internet post. Professional services, such as LIVE Services Group, will run both electrical and water lines for sure. Communication lines are not a thing you wanna save money on.

Marko Jaric is wrong--Plumb rite is correct. If water and power are buried in the same ditch, a minimum of 1 foot of separation is required; if gas and power are in same ditch, then a minimum of 24" of separation is required. This is not NEC, but it is IBC Code which governs every state in the US, and is usually enforced by all building code officials [if they have done their homework].

Water line: 1ft deep using water pipe. Electrical line Lay in side Plastic Pipe ( side by side would be ok! Mark pipe with Electric sign. Also at points along route (Beg. End etc.) Use small flag pipe run markers.

Hi Edward, there are guidelines for this, here is an example of them that i found, it may be different where you live though.

• All Trenches must be a minimum of 36” deep.
• If a 36-inch depth cannot be achieved, contact Lane Electric’s Engineering Department at 541-484-1151.
• If trench is to be a joint trench (shared with other utilities) the following separations must be maintained:
• 24 inches between gas and electric lines
• 12 inches between water and electric lines
• 24 inches between sewer and electric lines
• 12 inches between communications and electric lines
• If trench is to be power only, the ditch needs be wide enough to accommodate the conduit, i.e. a 4-inch ditch-witch trench is sufficient.
• If the trench is dug through rough, rocky terrain, the conduit must be bedded with a minimum of 4 inches of sand.
• All conduits must be gray Schedule 40 electrical PVC.
• All primary conduit (7200V) must be 3 inches in diameter with 36-inch radius long sweeping elbows at any 90° bend.