Half of Salida's homes went up in a single decade, so much of the town shares one age of plumbing. The Census counts 2,174 of 4,337 homes built in the 1990s, with a median year built of 1993, and only about 300 predate 1970. Nearly all, 4,110, are single-family detached, and 3,455 households own their home. In subdivisions like these the recurring losses are a supply line under a sink or behind a washer, and an irrigation line or valve box failing underground at the slab edge.
Rain gets into Salida's sewers, and the sewage plant sees it every winter. Inflow at the Salida Sanitary District plant rises with rain from December through March, sometimes into May, as storm water gets into 42.7 miles of pipe and four lift stations. On an average day the plant takes about 1.2 million gallons against a design capacity of 2.4. When a heavy storm loads the lines, the lowest drain in a building is where a backup shows first, and water that rises through a floor drain or toilet is Category 3.
The oldest sewer lines, in Salida's old town, are prone to grease blockages. LAFCO records that the district inspects the system weekly and clears grease on a schedule. Old town sits in the older section of downtown, where the County treats the Broadway Avenue corridor as the commercial core and a 2015 records search found three historic buildings. A shop or restaurant on a blocked line takes the backup at its floor drains, and the EPA 24 to 48 hour mold window opens the moment it does, and mold remediation in Salida follows a backup left to sit.
Salida is unincorporated, so its storm drains and its rebuild permits run through Stanislaus County. Storm drains are funded through County Service Areas run by County Public Works: CSA 10 covers parks, storm drains and street sweeping, and CSA 4 is a storm-drain-only area. In August 2020 the Board of Supervisors authorized an application to extend CSA 4 over about 4,400 benefiting parcels. Drinking water comes from the City of Modesto and sewer service from the Sanitary District, while rebuilding is permitted by the County Building Permits Division in Modesto.
The Stanislaus River marks Salida's northern edge, and its gauge record reaches back decades. At the Ripon gauge across the river, the Weather Service sets action stage at 55 feet and minor flooding at 60. The USGS peak record tops out at 63.25 feet on 24 December 1955; no peak since 1970 has reached 60 feet, and January 2023 stopped at 50.43. The river park lands lie in Army Corps flood easements, and any address can be checked on the FEMA Flood Map Service Center.
On 25 October 2021 the Salida Sanitary District plant took 1.88 million gallons, its largest recent peak day, after 1.34 inches of rain fell at the Modesto airport the day before. Storm water inside the sewer leaves less room for what drains from buildings.
Salida is 7 road miles from the Modesto base, up Highway 99 to the Kiernan Avenue or Hammett Road interchange. From the first reading to handover, one log carries every visit's measurements and photos.
Highway 99 at the Kiernan Avenue junction carries about 137,000 vehicles a day, with 27,500 more on Kiernan east of the freeway. Tule fog in December and January or harvest trucks can move an arrival toward 90 minutes; the arrival time is set when the request is acknowledged.
Loss classified under IICRC S500. In Salida the first questions are whether a backup came from the building's own line or a rain-loaded district sewer, since sewage is Category 3 either way, and whether rain entered through the roof or at the slab.
Pooled water is removed from floors, slabs and cabinets, and any room with Category 2 or 3 water is closed off under containment before demolition.
Drywall, insulation, carpet pad and cabinet bases that cannot dry are removed, photographed, bagged and manifested for disposal.
Drying equipment is matched to cubic footage and drying class. A 1990s house takes a standard setup; where concrete slabs are wet in the industrial buildings on Toomes and Murphy roads, they dry as Class 4 and take the longest.
Moisture readings are compared daily with unaffected material in the same structure and logged.
Drying is signed off at the S500 goal, and the photo log, moisture maps, daily readings and manifests go to the owner or adjuster ready to forward.
Salida areas differ by who serves them: the Sanitary District, the County service areas, the river easements or Modesto's sphere.
The downtown commercial core, with a landscaped median and parallel parking at Curtis Street and three historic buildings on record. Old-town sewer lines are prone to grease blockages, so floor drains in shops back up first.
Home of the fire district's only staffed station, at 4820 Salida Boulevard, shared with the Sheriff's Office; the Kiernan Avenue rebuild took in local road work here. Frontage buildings take street runoff first when an inlet blocks.
Under reconstruction in July 2015 with a storm drain pump station in the work, completion expected in fall 2016, on a stretch of Highway 99 carrying about 137,000 vehicles a day. If that pump falls behind, water stands.
Planned for regional and highway commercial and two business parks beside the interchange, with an expressway of up to 10 lanes to meet Highway 99. Once built, commercial roofs there face drains blocked by summer debris.
The Sanitary District plant at 6200 Pirrone Road, between the river and an MID canal, ringed by nine infiltration basins and three riverside ponds. Its inflow rises with winter rain, when town sewer lines carry the most water.
About 244 acres along the river set aside for a regional park inside Army Corps habitat and flood easements, not expected within twenty years. The plan sets uses progressively farther back from the river and its flood water.
Joseph Gregori High School, the Salida Union School District office and the former Modesto Tobacco and Candy and Shell Lab sites, with a fire station site planned on Stoddard. Large buildings lose wide areas to one failed roof drain.
Flory Industries, Vella Middle School and BMC West Lumber Company, served by the Sanitary District from outside its boundary, with neighborhood commercial planned at Covert and Toomes. Wet industrial slabs here dry as Class 4.
Planned Industrial land east of Sisk Road under the 2003 North Gateway plan, between Ladd Road, Dale Road, the Pelandale Expressway and Sisk Road. As it builds out, large roofs and slabs bring warehouse-scale losses.
The Ciccarelli Road station, in excellent condition but unstaffed and used for the fire board's monthly meetings, and the Ladd Road station, rated poor and rented out to a private business. A leak in a rarely visited building runs for weeks.
About 1,485 acres with 4,038 residential and 238 commercial sewer connections; the community planned before 2007 had mostly developed by then. Across Salida, supply lines and slab-edge irrigation are the common failures.
Parts of the fire district south of Kiernan Avenue lie in Modesto's sphere of influence, and two areas were annexed to the City while staying in the fire district. Owners there confirm which office permits a rebuild before it starts.
Storm water does reach the sewers: plant inflow at the Sanitary District rises with rain from December through March, and the largest recent peak day followed very heavy rain in October 2021. On an average day the system runs at about half its design capacity. If a floor drain or toilet overflows in a storm, the water is Category 3, so it is extracted, affected materials come out and the area is dried to the S500 goal.
About half of Salida's homes date from that decade, so the pattern repeats across town. Start with the source: a supply line under a sink or behind a washer indoors, and outside, an irrigation line or valve box beside the slab. The moisture map on the first visit then shows how far the water went under flooring and into wall bases, which decides what dries in place and what comes out.
The river park lands along the Stanislaus lie inside Army Corps habitat and flood easements, and the plant's lower ponds border the river. Farther into town, a 2015 County review found 4600 Broadway outside any recognized flood zone on FEMA map 06099C0305E. Any other address can be checked on the FEMA Flood Map Service Center, and the County reviews repairs to buildings inside a Special Flood Hazard Area.
LAFCO records that lines in Salida's old town are prone to grease build-up and that the Sanitary District inspects weekly and clears grease regularly. When a blockage pushes sewage back into a building, it is a Category 3 loss whatever caused it. The crew extracts it, removes contaminated flooring, drywall and pad, and dries the structure, and the photo log records where the water came in.
Stanislaus County Public Works. Salida's storm drains are funded through County Service Areas: CSA 10 pays for parks, storm drains and street sweeping, and CSA 4 is a storm-drain-only area, which the Board of Supervisors moved in August 2020 to extend over about 4,400 parcels. A blocked street inlet goes to the County; water that has already reached the building is a request for the crew.
Stanislaus County's Building Permits Division, 1010 10th Street, Suite 3400, Modesto, because the County keeps land use decisions in unincorporated Salida. Its form says a permit goes to the property owner or to the assigned contractor, never a tenant. Inside a Special Flood Hazard Area the County checks whether the repair is a substantial improvement, costing more than half the building's value. Two areas south of Kiernan Avenue were annexed to Modesto, so owners there confirm the office first.
