Pool Resurfacing in Newbury Park, CA, on the West End of the Conejo Valley
Pool resurfacing in Newbury Park means dealing with Santa Ana wind, Cal Am water, and pools from the 1960s and 1970s. Aqua Creations handles it with AQUA-GLASS™ fiberglass applied by our own crews from our Ventura shop, about 19 miles away.
- Total hardness, Jensen water
- 140 mg/L · 8.2 gpg
- Total hardness, Lake Bard water
- 164 mg/L · 9.6 gpg
- Dissolved solids, Lake Bard water
- 437 mg/L
Source: Calleguas Municipal Water District, 2025 Water Quality Report. Grains per gallon are mg/L divided by 17.1.
California American Water, and the minerals left behind in every top-off
California American Water’s Ventura County District lists Newbury Park among the communities it serves, along with Thousand Oaks and Camarillo. Like the other retail agencies in the Conejo Valley, it buys imported water from Calleguas Municipal Water District. The Calleguas 2025 report puts its main supply at 140 mg/L total hardness, about 8.2 grains per gallon, and 297 mg/L total dissolved solids.
Dissolved solids are what stays in the pool when water evaporates. A windy, sunny yard loses water faster, and each top-off brings in another load of calcium and salts. Over a season the pool water becomes harder to keep in balance than the tap water you started with.
Plaster pays for that in both directions: scale settles on it when the water runs high, and the cement etches when the water swings low. Fiberglass still needs balanced water, but it is not a cement product for the water to dissolve. Your Cal Am annual report shows the delivered figures for your address.
How each finish handles a Newbury Park backyard
The same four pressures come up again and again on this end of the valley: mineral-heavy top-off water, wind-blown debris, chemistry swings, and strong sun. Here is how a plaster surface and a gun-laminated fiberglass surface respond to each.
| Newbury Park condition | Plaster | AQUA-GLASS™ fiberglass |
|---|---|---|
| Mineral buildup from frequent top-offs | Scale settles into the pores once the surface etches, and acid washing it off removes a little more plaster each time. | Scale mostly stays along the tile line, where it can be cleaned without wearing down the finish. |
| Oak leaves and grit after a wind event | Leaves left on a porous floor overnight can tea-stain it, and grit scuffs a surface that is already soft. | A smooth face lets the cleaner and a brush lift debris before it marks the surface. |
| Water that drifts out of balance | Low-calcium or low-pH water pulls calcium out of the cement, which is how plaster turns rough. | Not a cement product, so it does not lose material to aggressive water the way plaster does. |
| Color in full afternoon sun | Tinted plaster tends to fade unevenly and look blotchy as it ages. | AQUA-GLASS™ comes in custom colors for backyard pools, applied as one continuous finish. |
Price and lifespan depend on your pool, so we cover them at the estimate.
Santa Ana gusts and dry heat at the west end of the valley
When Santa Ana winds swept Ventura County on November 20, 2023, KCLU reported a 45 mph gust in Newbury Park, with 75 mph at Camarillo Airport down the grade. Wind like that does two things to a pool in a single afternoon. It drops leaves, dust, and grit into the water, and it pulls water off the surface faster than a calm day would.
The debris is the visible problem. On an etched plaster floor, oak leaves and dirt that sit overnight leave brown marks behind. The evaporation is the quiet one, because it concentrates the minerals described above and sends more fill water in after it.
Summer brings the other half. The nearest NOAA normals station, Camarillo Airport, about 8 miles west below the Conejo Grade, puts the 1991 to 2020 normal August high at 79.5°F. A pool in full afternoon sun warms up, burns through chlorine faster, and sees bigger chemistry swings. That steady swing is what slowly roughens a cement finish.
Sources: KCLU, November 20, 2023 wind report; NOAA NCEI 1991 to 2020 monthly normals, Camarillo Airport station (USW00023136).
What to have ready when we visit your Newbury Park pool
None of this is required to book. Each item you can answer makes the first visit shorter and the estimate more exact. Tick what you already have.
0 of 8 ready
Tick what you already have. Nothing here is required to book.
Pool resurfacing in Newbury Park, matched to the pool you have
Each card below covers one kind of pool or one part of the job. Pick the one that matches yours.
Plaster, gunite, and pebble pools
If your Newbury Park pool is plaster that has gone rough after years of hard imported water, this is where to start.
Plaster pool resurfacingThe AQUA-GLASS™ finish
See the layers, the colors, and why a laminated finish holds up differently in a sunny, windy Newbury Park yard.
About the finishWaterline tile and coping
Scale from frequent top-offs builds at the tile line first. Replacing tile or coping is easiest while the pool is empty.
Pool tile and copingExisting fiberglass pools
Already fiberglass? Cracks or blisters on a Newbury Park fiberglass pool may call for a repair rather than a full resurface.
Fiberglass pool repairThree neighbors, and how they differ from Newbury Park
Thousand Oaks
Same city, different water system in the middle of it: the City of Thousand Oaks itself serves the central neighborhoods.
Pool resurfacing in Thousand OaksCamarillo
Down the Conejo Grade to the west. California American Water serves part of Camarillo too, but the City of Camarillo also pumps its own wells.
Pool resurfacing in CamarilloWestlake Village
At the far east end of the valley, on the county line, where the Los Angeles County side buys water from Las Virgenes Municipal Water District.
Pool resurfacing in Westlake VillageDos Vientos, Rancho Conejo, and the streets around Borchard Park
We cover Newbury Park from the Borchard Community Center on Reino Road out to Dos Vientos along Borchard Road, the Rancho Conejo area off Rancho Conejo Boulevard, and the neighborhoods along Old Conejo Road and Ventu Park Road near the 101.
From our shop in Ventura it is a straight run down the 101 and up the Conejo Grade. Newbury Park is part of our wider Ventura County service area, along with the neighboring towns above.
Newbury Park, City of Thousand Oaks · about 19 miles from our Ventura shop in a straight line
Start with a free estimate for your Newbury Park pool
Bring whatever you ticked off above, or nothing at all. We look at the shell, explain what the wear means, and give you a free estimate with no obligation. Financing is available.
- Visit or mail1547 Los Angeles Ave, Suite #108, Ventura, CA 93004
- Office hoursMonday to Friday, 8 AM to 4 PM
- Emailaquaglass@aquacreations.com