Standing water on property is fixed by giving the water somewhere to go, and the permanent fix is usually regrading, a drain line, or both. If a low spot holds water more than two or three days after rain, adding dirt or a sump pump rarely solves it. Find where the water comes from, then change the grade or pipe it out.
It's the end of October. The first real storm in the Sacramento Valley foothills is usually close, and this is the last good stretch to look at a drainage problem while the ground is still dry enough to cut and compact. Walberg, Inc. runs into the same few causes around Corning, Red Bluff, Chico and Redding every winter.
Why does water sit on your lot?
Water stands in one of three situations. It has nowhere lower to run, it can't soak in, or something upstream keeps feeding it.
A lot of valley-floor ground in Tehama and Butte counties is clay or has a hardpan layer a foot or two down. Rain fills the top layer, hits the hardpan, and has nowhere to go. A pad that was graded flat, or that settled over the years, makes it worse. Flat is the enemy. Even a little slope toward a ditch beats a perfectly level yard.
The upstream feeders are easy to miss. A roof with no gutters, a neighbor's pad that was raised two feet, a driveway that sheds onto your side, a culvert that plugged. Walk the property during a rain, not after. You'll see in ten minutes what a year of guessing won't tell you.
How to tell which problem you have
Before you hire anyone, sort the problem by what you see.
| What you see | Likely cause | Usual fix |
|---|---|---|
| Puddle in one low spot that drains in a day or two | Shallow dip in the grade | Fill and reshape that area |
| Whole yard soggy for a week or more | Hardpan or clay with no slope | Regrade to a ditch or swale |
| Water running toward the house or shop | Grade slopes the wrong way | Regrade away from the building, add a drain line |
| Water arrives from a road, field or neighbor | Offsite runoff | Intercept ditch or swale, maybe a culvert |
| Wet only near the septic field | Overloaded or failing drainfield | Not a grading job, see the septic note below |
If you can't place yours in that table, take photos during a rain and send them with your estimate request. We'd rather look at pictures than guess.
Regrading, French drain or storm drain: which one?
People call a French drain first because it's the thing they've heard of. It's a perforated pipe in a gravel trench, and it works well for catching groundwater or a seep along a slope. It works poorly in a yard where the real problem is flat ground, because the pipe has to go somewhere. If it can't daylight at a lower point, it just becomes an underground puddle.
Regrading is the cheapest permanent fix when you have room to work. We cut a gentle slope, a swale, or a ditch, compact the fill, and send the water to a legal discharge point. That's ordinary grading and site preparation work, and it's mostly an excavator or dozer and a roller.
A piped system makes more sense when there's no room for open ditches or the volume is bigger than a swale can carry. That's storm drain installation, and it's the right call near a building, under a driveway, or on a lot where a ditch would eat the usable ground.
Honest trade-off: if you only have one small low spot and the rest of the lot drains fine, don't pay for a regrade. A load of fill, shaped with a slight crown, might be the whole answer. We'd tell you that on the phone.
What about the neighbors?
This is where DIY drainage goes sideways. California follows a mix of the natural flow rule and a reasonable use rule, set out in Keys v. Romley (1966), 64 Cal.2d 396. In plain terms, you can't block water that naturally runs onto your land from above, and if you change the way water leaves your land and it damages the neighbor below, you can be liable.
So the fix can't be "dig a trench and point it at the fence line." The water has to go to a road ditch, a creek, a drainage easement, or onto your own ground where it can soak in. If you're not sure, ask a land use attorney before you move water, not after the neighbor's lawyer calls.
Work in the county road right of way is its own thing. In Tehama County the Public Works department requires an encroachment permit for culvert work in the road right of way. Butte and Shasta counties have their own offices, so call before you cut near the road. Our post on the Tehama County grading permit covers when grading itself needs a permit.
When is it not a grading problem?
Two cases. First, if the wet area sits over or just below your septic drainfield, stop and call a septic pro. Surface water in a drainfield can mean the field is failing, and grading over it can make things worse. Walberg, Inc. does septic system installation, but a failing field needs an inspection first.
Second, if water shows up in the same spot in July with no rain, that's a broken irrigation line, a leaking water service, or a spring. Fix the leak. Regrading around a leaking pipe is money in the ditch.
Timing: do it before the ground is saturated
We'd cut and compact in dry or slightly damp soil. Once the ground is saturated, equipment pumps mud, compaction suffers, and the regrade you pay for settles unevenly. If the rains come early, we'd rather wait two weeks for the ground to firm up than push mud around.
That said, a lot with water in the house or shop is an emergency, and you do what you have to do. A temporary ditch or sump to get through January, then a proper regrade in spring, is a legitimate plan.
Common Questions
Why does my yard hold water for days after it rains?
Usually the soil can't absorb it and the ground has no slope to carry it off. Valley clay and hardpan layers stop water about a foot or two down, and a flat grade gives it no exit. Fixing the slope or giving the water a drain path is what changes the outcome.
Does a French drain fix standing water?
Only if the water can drain out the other end. A French drain collects and moves water, but it needs a lower discharge point to a ditch, creek, or dry well. On a flat lot with no place to send it, regrading usually works better.
Can I legally drain my standing water onto a neighbor's property?
Not if it changes the natural flow and causes damage. Under California's rule from Keys v. Romley, a landowner who redirects or concentrates water onto a neighbor can be liable for the harm. Route water to a road ditch, a drainage easement, or your own ground instead.
Is standing water on my property a health or building problem?
It can be both. Water that sits for days breeds mosquitoes, softens driveways, and can undermine a slab or footing if it ponds against the building. Water pooled against the foundation should be dealt with before the wet season, not after.
Who do I hire to fix drainage on my property?
Look for a licensed contractor with grading and excavation equipment, and check the license on the CSLB site. Walberg's license is #898860 (A, C-21, C-22).
The bottom line
Start with the water, not the pipe. Walk the lot in the next rain, mark where it enters and where it stalls, and decide if it's a reshaped grade or a drain line. If it's a small dip, fill it. If it's the whole yard or water is headed for a building, get it graded before the ground saturates.
Serving Corning, Red Bluff, Chico, Redding and the rest of Tehama, Butte and Shasta counties, we can look at it and tell you which fix fits. Send photos from the next rain with your request for a free estimate, or see our Corning service area page if you're not sure we cover you.