Coverage
Cities We Serve Across CA
Genuinely local service across CA.

Huntington Beach, CA
Huntington Beach sits on a coastal plain with a high water table, and that single fact shapes most of the sewer work here. Groundwater close…
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Newport Beach, CA
Newport Beach is really several different sewer environments inside one city boundary, and the right approach changes depending on which one…
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Costa Mesa, CA
Costa Mesa built out rapidly in the 1950s and 1960s, much of it on land that had been agricultural or part of the wartime Santa Ana Army Air…
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Fountain Valley, CA
Fountain Valley is named for the artesian conditions that once defined this ground, and the high water table that gave the city its name is …
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Westminster, CA
Westminster was farmland into the 1950s, strawberries and beans mostly, and then filled in with tract housing across the 1960s. That gives t…
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Irvine, CA
Irvine is the unusual case in Orange County because its laterals are mostly young. The city was master-planned and built out village by vill…
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Tustin, CA
Tustin spans an unusually wide range of construction eras for a city this size, and the sewer work divides along those lines. Old Town Tusti…
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Santa Ana, CA
Santa Ana is the oldest city in Orange County and the county seat, and its sewer infrastructure reflects that. The historic neighbourhoods, …
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Orange, CA
Orange holds one of the largest historic districts in California. Old Towne Orange, centred on the Plaza, contains a great concentration of …
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Garden Grove, CA
Garden Grove went from farmland to a fully built city across the 1950s and early 1960s, and that compressed build-out is the key to its sewe…
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Anaheim, CA
Anaheim covers more sewer ground than almost any city in the county, because it contains three completely different environments. The Anahei…
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Fullerton, CA
Fullerton grew as a citrus packing and rail town, and the housing around the downtown and the old Santa Fe depot dates from the 1900s throug…
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Buena Park, CA
Buena Park filled in with tract housing across the 1950s and 1960s, built out from the older agricultural settlement and the berry farm that…
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Cypress, CA
Cypress was dairy country before it was a city, and it was incorporated under the name Dairy City before taking its present one. The agricul…
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Yorba Linda, CA
Yorba Linda sits against the Chino Hills on ground that rises and folds, and that topography is the main thing distinguishing sewer work her…
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Mission Viejo, CA
Mission Viejo is one of the largest master-planned communities in the country, built out from the mid-1960s through the 1980s across the rol…
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Lake Forest, CA
Lake Forest takes its name from the eucalyptus groves planted across this ground early in the twentieth century, and those trees are the sin…
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Rancho Santa Margarita, CA
Rancho Santa Margarita is among the newest cities in Orange County, master-planned and built out largely from the mid-1980s through the 1990…
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Laguna Niguel, CA
Laguna Niguel is built across steep coastal hill country, and slope stability is a genuine consideration here rather than a theoretical one.…
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San Clemente, CA
San Clemente was founded in the 1920s as a planned Spanish Colonial Revival village, and the housing from that original development is the o…
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Los Angeles, CA
Los Angeles contains every sewer lateral problem California has, because it contains every era of California construction. The pre-1940 bung…
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Santa Monica, CA
Santa Monica's housing stock is old by Southern California standards, with a great deal of it dating from the 1900s through the 1930s, and t…
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Pasadena, CA
Pasadena holds some of the oldest housing in Southern California. The Craftsman bungalow neighbourhoods, Bungalow Heaven among them, togethe…
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Glendale, CA
Glendale built out substantially between the 1920s and the 1940s, which puts a large share of its laterals in the cast iron and early vitrif…
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Burbank, CA
Burbank's residential core was built largely between the 1920s and the 1950s, which spans the transition from cast iron and early clay into …
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Van Nuys, CA
Van Nuys is one of the older San Fernando Valley communities, founded before the First World War, and it carries two distinct generations of…
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North Hollywood, CA
North Hollywood developed earlier than most of the San Fernando Valley, with residential streets going back to the 1920s, and that gives it …
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Woodland Hills, CA
Woodland Hills covers the west end of the San Fernando Valley and runs up into the Santa Monica Mountains on its southern edge, which gives …
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Northridge, CA
Northridge is the one place in California where the seismic contribution to sewer lateral failure needs no explaining. The magnitude 6.7 ear…
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Santa Clarita, CA
Santa Clarita is a young city built from several older communities, and its sewer profile splits accordingly. Old Town Newhall and the origi…
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Lancaster, CA
Lancaster sits on the floor of the Antelope Valley in the western Mojave, and high desert ground behaves nothing like the coastal clay basin…
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Palmdale, CA
Palmdale shares the Antelope Valley floor with Lancaster and the same high desert ground conditions: alkaline soils, caliche hardpan at dept…
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Victorville, CA
Victorville sits in the High Desert along the Mojave River, and the ground here is the defining practical factor. Mojave soils are alkaline,…
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Palm Springs, CA
Palm Springs presents a combination of conditions you will not find together anywhere else in California. The city sits on the alluvial fan …
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Palm Desert, CA
Palm Desert shares the Coachella Valley conditions that make sewer work here distinct from the rest of California. The ground is coarse allu…
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Indio, CA
Indio sits at the low end of the Coachella Valley, well below sea level in places, on the agricultural ground that made this a date and grap…
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La Quinta, CA
La Quinta occupies the coves and alluvial fans where the Santa Rosa Mountains meet the Coachella Valley floor, and the ground reflects that …
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Riverside, CA
Riverside is one of the older cities in inland Southern California, founded in the 1870s and built on navel orange money, and its historic c…
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Moreno Valley, CA
Moreno Valley grew explosively, from a scattering of rural communities to one of the larger cities in the Inland Empire across the 1980s, 19…
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Corona, CA
Corona was laid out in the 1880s as a citrus town, built around the circular Grand Boulevard that still defines its historic centre, and the…
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Temecula, CA
Temecula is a young city with an old centre. Old Town dates from the 1880s railway era and carries the oldest laterals here, cast iron and e…
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Murrieta, CA
Murrieta grew from a rural valley with a hot springs resort history into a city of over a hundred thousand across the 1990s and 2000s, and t…
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San Bernardino, CA
San Bernardino is among the oldest settlements in inland Southern California, and the housing around its historic downtown runs from the 188…
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Fontana, CA
Fontana's housing history is unusual and it shows below grade. The city began as an agricultural colony in the 1910s, then expanded enormous…
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Ontario, CA
Ontario is our home city. Our office is at 3274 E Guasti Rd, so this is the ground we know best and the area we reach fastest. It is also a …
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Chino, CA
Chino has a sewer condition that very few California cities share, and it is worth knowing about if you own property in the southwest of the…
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Rancho Cucamonga, CA
Rancho Cucamonga sits directly on the alluvial fan spreading south out of Cucamonga Canyon and the San Gabriel front, and that ground is the…
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Pomona, CA
Pomona has one of the larger stocks of genuinely old housing in the eastern Los Angeles basin. The historic districts, Lincoln Park and Haci…
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Diamond Bar, CA
Diamond Bar is built across the Puente Hills, and almost everything distinctive about sewer work here follows from that. The city was develo…
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West Covina, CA
West Covina was one of the fastest-growing cities in the country during the 1950s, going from a small agricultural community to a substantia…
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El Monte, CA
El Monte sits where the Rio Hondo and the San Gabriel River come together, on ground that was known for its meadows and artesian water long …
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Cerritos, CA
Cerritos was dairy country before it was a suburb, incorporated as Dairy Valley and only later renamed, and the conversion from pasture to t…
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Norwalk, CA
Norwalk filled in with tract housing across the 1950s, converting former agricultural land into one of the postwar suburbs that absorbed Los…
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Downey, CA
Downey's residential fabric is overwhelmingly postwar, built out through the late 1940s, 1950s and early 1960s as the aerospace industry tha…
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Whittier, CA
Whittier was founded in 1887 and its Uptown district and surrounding older neighbourhoods carry housing from the 1890s through the 1920s, wh…
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Long Beach, CA
Long Beach has a sewer history unlike anywhere else in the state, because this city experienced some of the most dramatic ground subsidence …
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Lakewood, CA
Lakewood is the clearest example in California of why the year a neighbourhood was built determines what is under it. The city was created i…
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Carson, CA
Carson occupies low, flat ground on the coastal plain between Los Angeles and the harbour, and the water table here sits close to the surfac…
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Compton, CA
Compton is one of the older incorporated cities in Los Angeles County, founded in the 1880s, and that longevity shows in a housing stock tha…
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Torrance, CA
Torrance began as a planned industrial city laid out in 1912, and the original townsite neighbourhoods carry housing from the 1910s and 1920…
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Inglewood, CA
Inglewood gives its name to one of the most significant fault zones in Southern California. The Newport-Inglewood fault zone runs beneath th…
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San Diego, CA
San Diego's geography makes its sewer laterals unusual among large California cities, because the city is cut through by a dense network of …
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La Jolla, CA
La Jolla has documented slope instability, and it is the first thing to understand about sewer work here. In October 2007 a substantial land…
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Chula Vista, CA
Chula Vista splits cleanly into two cities for sewer purposes, and which side of it you are on changes the diagnosis entirely. The western h…
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National City, CA
National City is among the oldest incorporated cities in San Diego County, dating from the 1880s, and it holds a genuine Victorian housing s…
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El Cajon, CA
El Cajon sits in an inland valley ringed by hills, which is how it got its name, and the ground here is quite different from the coastal pla…
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La Mesa, CA
La Mesa is built across hilly ground east of San Diego, and the terrain and the rock beneath it are what make sewer work here distinctive. M…
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Poway, CA
Poway calls itself the City in the Country and the description has practical consequences for sewer work. Lots here are large, many of them …
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Escondido, CA
Escondido was founded in 1888 and its downtown and surrounding older neighbourhoods carry housing from the 1890s through the 1920s, which ma…
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San Marcos, CA
San Marcos grew from a small agricultural community into a city of nearly a hundred thousand across the 1980s, 1990s and 2000s, which means …
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Vista, CA
Vista sits inland from the coast in the North County hills, far enough back that it misses the marine influence and gets the full inland tem…
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Carlsbad, CA
Carlsbad runs from the shoreline back several miles inland, and that cross-section gives it several distinct sewer environments. The coastal…
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Encinitas, CA
Encinitas is defined by its coastal bluffs, and those bluffs are actively eroding. Bluff failures along this stretch of coast are a document…
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Oceanside, CA
Oceanside was founded in the 1880s and its downtown and older beachside neighbourhoods carry housing from the 1900s through the 1940s, which…
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Ventura, CA
Ventura has one of the longest settlement histories in coastal California, with the mission dating from 1782 and substantial downtown housin…
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Oxnard, CA
Oxnard sits on the Oxnard Plain, some of the most productive farmland in the state, and the ground that makes it productive is the same grou…
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Simi Valley, CA
Simi Valley is a basin ringed by hills, and both the valley floor and the slopes around it contribute to the sewer work here. The valley soi…
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Santa Barbara, CA
Santa Barbara's building history has a sharp dividing line in it, and that line is visible below grade as well as above. The earthquake of J…
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Salinas, CA
Salinas sits on the floor of its valley, on deep alluvial soil that makes this one of the most intensively farmed regions in the country. Ag…
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San Jose, CA
San Jose has the most significant land subsidence history of any city in California outside the San Joaquin Valley, and it is directly relev…
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Santa Clara, CA
Santa Clara sits on the Santa Clara Valley floor, and the heavy adobe clay that made this one of the great orchard regions of California is …
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Sunnyvale, CA
Sunnyvale was orchards into the 1950s and then filled in rapidly with tract housing as the valley's electronics industry grew. That compress…
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Fremont, CA
Fremont was assembled in 1956 out of five separate older communities, Niles, Centerville, Irvington, Mission San Jose and Warm Springs, and …
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Hayward, CA
Hayward is the city the Hayward Fault is named for, and nowhere in California is the effect of fault creep on buried infrastructure easier t…
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San Mateo, CA
San Mateo runs from the bay shoreline up into the hills on the peninsula, and the ground changes character completely across that short dist…
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San Francisco, CA
San Francisco is unusual among large Western cities in running a combined sewer system, where stormwater and wastewater share the same pipes…
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Oakland, CA
If you are selling or substantially remodelling in Oakland, the most important thing to know about your sewer lateral is that you will proba…
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Berkeley, CA
Berkeley has a sewer lateral compliance requirement, and there is a wrinkle here that trips people up: Berkeley runs its own private sewer l…
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Concord, CA
Concord sits inland in the Diablo Valley, screened from the bay's marine influence by the hills, which gives it hot, entirely rainless summe…
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Vallejo, CA
Vallejo has some of the oldest housing stock in the Bay Area outside San Francisco, because this was a navy town from the 1850s and the ship…
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Santa Rosa, CA
Santa Rosa has been rebuilt twice, and both rebuilds are visible in what is under the ground. The 1906 earthquake devastated this city's dow…
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Sacramento, CA
Sacramento has a genuinely unusual sewer condition, and it comes from what the city did to itself in the nineteenth century. After repeated …
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Elk Grove, CA
Elk Grove went from a small rural community to one of the larger cities in the Sacramento region across the 1990s and 2000s, which means alm…
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Roseville, CA
Roseville has two quite distinct halves. The original town grew up around the railway yards from the 1900s onward, and the older neighbourho…
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Chico, CA
Chico is the regional centre of the northern Sacramento Valley and it has a genuinely old core for a city this far north. Founded in the 186…
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Stockton, CA
Stockton sits at the eastern edge of the Sacramento-San Joaquin Delta, and that position gives it ground conditions found almost nowhere els…
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Modesto, CA
Modesto was founded as a railway town in the 1870s, and the downtown and the older neighbourhoods around it hold housing from the 1890s thro…
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Fresno, CA
Fresno's hardpan is locally famous for good reason. The cemented layer in these valley soils is hard enough that the Forestiere Underground …
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Visalia, CA
Visalia was settled in 1852, which makes it one of the oldest towns in the San Joaquin Valley, and the older central neighbourhoods carry ho…
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Bakersfield, CA
Bakersfield sits at the southern end of the San Joaquin Valley in a setting shaped by two extraction industries, oil and groundwater, and bo…
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