Why water damage happens in Livingston
Livingston's storm water leaves town by pump, at a rate the irrigation canals set. Runoff passes through twelve detention and retention basins and twelve pump stations and reaches Merced Irrigation District canals, the Arena and Livingston canals among them, at five discharge points, each basin's lift station pumping at a controlled rate. MID has told the City it has no capacity for more storm water from Livingston. A few older neighborhoods discharge straight to the canal, and the Storm Drainage Master Plan records nuisance flooding in several parts of the existing city.
The city's water and sewer systems were built in 1928, six years after incorporation, and parts of them have since been replaced. In 2008 the City laid 18,936 feet of new water line, partly to replace aging pipe. Around Downtown most houses date from before the mid-1980s, and 66 homes were built in 1939 or earlier. On private service lines and in houses of that age, galvanized supply pinholes and cast-iron waste joints are where leaks start, usually out of sight under floors or inside walls.
Nearly half of Livingston's homes went up in the 1990s and 2000s, and those tracts fail in their own way. The 1990s added 769 homes and the 2000s 870, with curbs, gutters and underground utilities, and west of Prusso Street most houses date from the last two decades. In tracts of this age the losses come from irrigation laterals and valve boxes that fail underground at the slab edge. About 43% of homes are rented, and in a rental a slow leak is found late.
Livingston's mapped flood risk sits on its northern edge, by the Merced River. The Housing Element places the city's flooding problems in the north, closest to the river, where a small section is mapped Zone A, and most of the northwest corner lies in the 100-year floodplain. A failure of Don Pedro or McSwain dam would reach the north-western portions. In July 2021 the city had four flood policies and no flood claims on record. Addresses can be checked on the FEMA Flood Map Service Center.
Livingston is a food-processing town, and its industry sits west of North Main Street. Foster Farms has its world headquarters here, and the City describes the plant inside its limits as the largest chicken slaughterhouse and processing plant in the world. The assessor counts 33 buildings on 19 industrial parcels and 235 buildings on 82 commercial parcels. A failed roof seam or process line over a production floor wets a large area at once, and the EPA allows 24 to 48 hours to dry it before the mold that spreads across a production floor.
A failure of New Exchequer Dam at Lake McClure would flood the whole of Livingston: 3,340 improved parcels, 4,001 buildings and 14,216 residents, by the county's 2021 count. No address in the city sits outside that scenario, however far it is from the river.
Water damage restoration, as delivered in Livingston
The crew comes 24 miles from the Modesto base on Highway 99, which crosses Livingston on a diagonal with interchanges at Winton Parkway and Hammatt Avenue. The team that takes the first readings takes the last ones too.
From Modesto the crew runs Highway 99, which carries 60,000 to 62,000 vehicles a day through Livingston. Merced County's tule fog season lasts from November to March and some years into May, and fog or harvest trucks put arrival near 140 minutes. The time is confirmed with the acknowledgement.
IICRC S500 category and class are set on the first visit. In Livingston the questions are whether storm water came off a basin or canal, making it Category 3, and whether water under an older Downtown house came from a supply line or a sewer lateral.
Extraction runs through truck-mounted units at plants and larger buildings and portable units in houses and apartments; Category 2 and 3 zones are closed off under negative air.
Drywall, insulation and flooring past saving are taken out, photographed, and disposed of at permitted Merced County sites with a manifest.
Equipment is matched to each building's volume and drying class, from a small Central Livingston house on a lot under 5,000 square feet to a production building on the west side. Concrete and other dense materials fall in Class 4 and are the slowest to release water.
Moisture readings are compared each day with dry material in the same structure and written into the log.
Drying is signed off at the S500 goal, with photos, moisture maps, daily logs, disposal manifests and a line-item scope ready to send to the adjuster.
Where water damage happens in Livingston
Highway 99 and the railroad split Livingston in two, and each side mixes old alley blocks with tracts built after 2000.
Downtown and Main Street
South of Highway 99, older commercial and residential buildings on alleys with overhead utility lines, and medium-density housing near Downtown and along North Main Street. Aging structures and private service lines are where leaks begin.
Central Livingston east of Lincoln Boulevard
Lots mostly under 5,000 square feet, the city's largest high-density zoning and, by Code Enforcement's account, its concentration of substandard housing. Leaks in crowded older units are found late and pass through shared walls.
B Street corridor
The medical clinic complex, affordable apartments run by Self-Help Enterprises and the Housing Authority, Tierra Santa Villas and Casitas Del Sol. Multi-family buildings here must carry backflow devices, and one burst supply line can wet the next unit.
Winton Parkway interchange
Highway 99 carries 60,000 to 62,000 vehicles a day here, and the parkway's widening was on the City's 2021-2022 capital list. Self-Help Enterprises has applied to build 80 low-income units at Winton Parkway and B Street.
Hammatt Avenue interchange and the Highway 99 frontage
South of the highway, land by this interchange is mainly commercial and medical, and the Hammatt Road overpass was on the 2021-2022 capital list. In a clinic or shop, one roof or supply-line leak can close a suite.
North Livingston
North of the Union Pacific line and Highway 99, single-family homes, about a third from before 1985 and the rest after 2000, with lower-rent apartments at the north end. The older houses are mostly rentals or home to older residents.
Industrial west side and Foster Farms
West of North Main Street, few homes and mostly industrial, commercial and farm land, including the Foster Farms plant, which treats its own wastewater on site. Large roofs over production floors carry the exposure.
Northern edge along the Merced River
The part of the city with flooding problems, including a small Zone A area, and the corner Don Pedro or McSwain dam failures would reach. Water that arrives here comes from outside the building and is Category 3.
South Livingston west of Prusso Street
Mostly homes from the last two decades, larger houses on lots of 7,000 square feet or more. When an irrigation lateral or valve box fails underground, water collects against the slab edge before it shows indoors.
South Livingston east side and The Villages at Main Street
Most of South Livingston's higher-density zoning, with the New Castle apartments, Sun Valley and The Orchards on Newcastle. The 480-unit Villages at Main Street was entitled, its owner working to underground the canal crossing the site.
South Livingston mobile home park
One large park, which the Housing Element described as about half occupied, with new mobile homes. Leaks beneath a unit are traced with moisture meters and thermal imaging before any flooring is cut.
Arena and Livingston canals and the detention-basin watersheds
Neighborhoods drained to MID's Arena and Livingston canals through pump stations under per-lot Subdivision Drainage Agreements, and through small local basins the City would like to phase out. Their streets depend on the pumps keeping up.
Water damage sub-services available in Livingston
Questions from Livingston property owners and managers
The agreements connect many Livingston lots to MID canals, among them the Arena Canal and the Livingston Canal, for a one-time per-lot connection fee and an annual maintenance fee on the Merced County property tax bill. The City's page describes the fees and the connection, not who answers for water on an individual lot, so the agreement itself is the document to read. If storm water enters the building, the crew records the entry path in the moisture map and photographs.
Each basin's lift station pumps into the MID canals at a controlled rate, and MID has told the City it has no capacity for additional storm water, so the pumping rate sets how fast a basin empties. A 2021 county hazard plan action proposed upgrading the motors, pumps and electrical panel of a storm lift station and connecting it to SCADA to cut the risk of urban flooding. Water that reaches a building from the street is Category 3.
Livingston's water system dates from 1928, and in 2008 the City laid 18,936 feet of new line, partly to replace aging pipe, so report water surfacing near the street or the meter to the City. Which side of the meter the leak sits on is settled there. Inside the property the crew maps where water is entering the building, and those readings help the plumber find the source.
The Division provides inspections at any time, including nights, weekends and holidays, for serious, urgent life-safety concerns; ordinary requests by telephone get next-day service, and no building inspections are done on Fridays. Whether storm damage counts as a life-safety concern is the Division's decision. Extraction and drying do not wait for an inspection, and the crew's photographs and readings are ready if the inspector asks for them.
Livingston's mapped flood risk is concentrated in one place. The flooding problems sit in the northern part of the city, closest to the Merced River, where a small area is Zone A and most of the northwest corner lies in the 100-year floodplain, though the county found only one improved parcel there, an agricultural one. The city had four flood policies in 2021. The FEMA Flood Map Service Center shows the zone for any address.
After a clean-water leak, tenants can usually stay while equipment runs in the affected rooms. If the water is Category 2 or 3, from a backed-up lateral or storm water, the affected rooms are closed until they are cleaned and dry. On lots under 5,000 square feet with units close together, the crew also checks the neighbouring unit through the shared wall before drying starts.
Water damage restoration near Livingston
