Your Local Water Profile: Ventura
This profile explains what the applicable water provider reported for Ventura, what those results may mean throughout a home, and where property-specific testing or inspection may still be needed.
First, confirm your water provider.
This city includes address-dependent or partial water-service coverage. Confirm the provider on your bill before using these results.
What the official water report says
Your water at a glance
Ventura Water
The report lists hardness as 437 ppm; this is very hard on the USGS scale.
USGS hardness scale: 0–60 soft; 61–120 moderately hard; 121–180 hard; >180 very hard, in mg/L as CaCO3.
Casitas Municipal Water District
The report lists hardness as 263 ppm; this is very hard on the USGS scale.
Reported range: NA ppm
USGS hardness scale: 0–60 soft; 61–120 moderately hard; 121–180 hard; >180 very hard, in mg/L as CaCO3.
Saticoy Country Club
The report lists hardness as 574 ppm; this is very hard on the USGS scale.
USGS hardness scale: 0–60 soft; 61–120 moderately hard; 121–180 hard; >180 very hard, in mg/L as CaCO3.
Ventura Water Department — compliance, as reported
The report states: “The water system named above hereby certifies that its Consumer Confidence Report was distributed on _6/15/2026__________ (date) to customers... Further, the system certifies that the information contained in the report is correct and consistent with the compliance monitoring data previously submitted to the State Water Resources Control Board, Division of Drinking Water (DDW). [p. B-1]”
Violations or advisories, as reported: The PFHxS (a subset of PFAS substances) result for the Ventura River Source Wells exceeded the notification level of 3.0 ng/L (parts per trillion). Ventura Water has been in consultation with DDW and following the monitoring and reporting guidelines as issued in the State’s PFAS General Order. At this time, the only directive in response to the trace detection has been to implement quarterly monitoring of our Ventura River wells. There is no other reporting or action required. There is no immediate threat to public health or safety.
Casitas Municipal Water District — compliance, as reported
The report states: “Casitas MWD strives to meet all USEPA and State drinking water health standards.”
Violations or advisories, as reported: None reported
Saticoy Country Club — compliance, as reported
The report states: “The water from the wells meets primary health related drinking water standards and regulations for groundwater sources. [p. 1, Drinking Water Quality and Source Assessment Information]”
Violations or advisories, as reported: Selenium samples taken in 2025 fluctuated above and below the MCL. The calculated combined annual running average for 2025 was 57 ppb (MCL is 50 ppb). The State Water Resources Water Quality Control Board Division of Drinking Water has requested that Ventura Water continue sampling quarterly and implement a solution to reduce selenium. [p. 6]
The Three C's — 1 of 3
Chemistry
What does this water tend to do in a home?
Ventura Water Department
Hardness, Total [as CaCO3]
The utility reported: 437 ppm
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Hardness, Total [as CaCO3]
The utility reported: 263 ppm
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Hardness, Total [as CaCO3]
The utility reported: 637 ppm
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Calcium
The utility reported: 138 ppm
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Calcium
The utility reported: 69 ppm
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Magnesium
The utility reported: 32 ppm
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Magnesium
The utility reported: 22 ppm
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Magnesium
The utility reported: 51 ppm
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Alkalinity
The utility reported: 208 ppm
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Alkalinity
The utility reported: 160 ppm
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Total Dissolved Solids
The utility reported: 723 ppm
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Total Dissolved Solids
The utility reported: 390 ppm
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Total Dissolved Solids
The utility reported: 1308 ppm
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Sodium
The utility reported: 128 ppm
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Lead
The utility reported: Not detected at the report's stated reporting limit ppb
Tap water samples were collected for lead and copper analyses · report p. TEST RESULTS · official report
Copper
The utility reported: 0.33 ppm
Tap water samples were collected for lead and copper analyses · report p. TEST RESULTS · official report
Chloramines
The utility reported: 2.8 ppm
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Chloramines
The utility reported: 2.8 ppm
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Corrosivity
The utility reported: 11.9 units
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Corrosivity
The utility reported: 0.10 units
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Corrosivity
The utility reported: 12.40 units
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Casitas Municipal Water District
Total Dissolved Solids
The utility reported: 390 ppm
Reported range: NA
Reported constituent · report p. 5 · official report
Specific Conductance
The utility reported: 676 \u00b5S/cm
Reported range: NA
Reported constituent · report p. 5 · official report
Chloride
The utility reported: 16 ppm
Reported range: NA
Reported constituent · report p. 5 · official report
Sulfate
The utility reported: 171 ppm
Reported range: NA
Reported constituent · report p. 5 · official report
Alkalinity - Total as CaCO3
The utility reported: 160 ppm
Reported range: NA
Reported constituent · report p. 5 · official report
Hardness - Total as CaCO3
The utility reported: 263 ppm
Reported range: NA
Reported constituent · report p. 5 · official report
pH
The utility reported: 7.5 pH standard units
Reported range: NA
Reported constituent · report p. 5 · official report
Sodium
The utility reported: 23 ppm
Reported range: NA
Reported constituent · report p. 5 · official report
Saticoy Country Club
The Three C's — 2 of 3
Contaminants
What was reported, and what do the applicable standards mean?
Legal limit — maximum contaminant level (MCL)
The highest level legally allowed in public drinking water under the applicable rule. Do not use MCL as a generic label for goals, action levels, notification levels, or independent guidelines. It is different from a non-enforceable health goal.
California health goal — public health goal (PHG)
A non-enforceable health-protective target developed for standard-setting context. It is not the California legal limit.
Federal health goal — maximum contaminant level goal (MCLG)
A non-enforceable EPA public-health target used in setting standards. It is not the legal limit.
Legal disinfectant-residual limit — maximum residual disinfectant level (MRDL)
The highest level of a drinking-water disinfectant allowed under the applicable rule. It is not an MCL for a contaminant.
Ventura Water Department — regulated contaminants reported as detected (34)
Arsenic
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: NA
Legal limit (MCL): 10 · Health goal (PHG): 0.004 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits; runoff from orchards; glass and electronics production wastes
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Arsenic
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: NA
Legal limit (MCL): 10 · Health goal (PHG): 0.004 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits; runoff from orchards; glass and electronics production wastes
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Arsenic
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: ND–2
Legal limit (MCL): 10 · Health goal (PHG): 0.004 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits; runoff from orchards; glass and electronics production wastes
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Barium
The utility reported: Not detected at the report's stated reporting limit ppm
Reported range: NA
Legal limit (MCL): 1 · Health goal (PHG): 2 — not an enforceable limit
Violation per report: No
Typical source, per the report: Discharges of oil drilling wastes and from metal refineries; erosion of natural deposits
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Barium
The utility reported: 0.1 ppm
Reported range: NA
Legal limit (MCL): 1 · Health goal (PHG): 2 — not an enforceable limit
Violation per report: No
Typical source, per the report: Discharges of oil drilling wastes and from metal refineries; erosion of natural deposits
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Barium
The utility reported: Not detected at the report's stated reporting limit ppm
Reported range: NA
Legal limit (MCL): 1 · Health goal (PHG): 2 — not an enforceable limit
Violation per report: No
Typical source, per the report: Discharges of oil drilling wastes and from metal refineries; erosion of natural deposits
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Chloramines
The utility reported: 2.8 ppm
Reported range: 0.3–4.1
MRDL: 4.0 (as Cl2) · Health goal (MRDLG): 4 (as Cl2) — not an enforceable limit
Violation per report: No
Typical source, per the report: Drinking water disinfectant added for treatment
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Chloramines
The utility reported: 2.8 ppm
Reported range: 0.3–4.1
MRDL: 4.0 (as Cl2) · Health goal (MRDLG): 4 (as Cl2) — not an enforceable limit
Violation per report: No
Typical source, per the report: Drinking water disinfectant added for treatment
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Fluoride
The utility reported: 0.5 ppm
Reported range: NA
Legal limit (MCL): 2.0 · Health goal (PHG): 1 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits; water additive that promotes strong teeth; discharge from fertilizer and aluminum factories
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Fluoride
The utility reported: 0.3 ppm
Reported range: NA
Legal limit (MCL): 2.0 · Health goal (PHG): 1 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits; water additive that promotes strong teeth; discharge from fertilizer and aluminum factories
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Fluoride
The utility reported: 0.44 ppm
Reported range: 0.3–0.6
Legal limit (MCL): 2.0 · Health goal (PHG): 1 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits; water additive that promotes strong teeth; discharge from fertilizer and aluminum factories
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Gross Alpha Particle Activity
The utility reported: 3.63 pCi/L
Reported range: NA
Legal limit (MCL): 15 · Health goal (PHG): (0) — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Gross Alpha Particle Activity
The utility reported: Not detected at the report's stated reporting limit pCi/L
Reported range: NA
Legal limit (MCL): 15 · Health goal (PHG): (0) — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Gross Alpha Particle Activity
The utility reported: 3.99 pCi/L
Reported range: ND–3.99
Legal limit (MCL): 15 · Health goal (PHG): (0) — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Haloacetic Acids [HAA5]
The utility reported: 46 ppb
Reported range: 2–55
Legal limit (MCL): 60 · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: By-product of drinking water disinfection
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Haloacetic Acids [HAA5]
The utility reported: 45 ppb
Reported range: 9–54
Legal limit (MCL): 60 · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: By-product of drinking water disinfection
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Nitrate [as nitrogen]
The utility reported: 1.0 ppm
Reported range: 0.8–1.3
Legal limit (MCL): 10 · Health goal (PHG): 10 — not an enforceable limit
Violation per report: No
Typical source, per the report: Runoff and leaching from fertilizer use; leaching from septic tanks and sewage; erosion of natural deposits
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Nitrate [as nitrogen]
The utility reported: 0.4 ppm
Reported range: NA
Legal limit (MCL): 10 · Health goal (PHG): 10 — not an enforceable limit
Violation per report: No
Typical source, per the report: Runoff and leaching from fertilizer use; leaching from septic tanks and sewage; erosion of natural deposits
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Nitrate [as nitrogen]
The utility reported: 1.5 ppm
Reported range: ND–4
Legal limit (MCL): 10 · Health goal (PHG): 10 — not an enforceable limit
Violation per report: No
Typical source, per the report: Runoff and leaching from fertilizer use; leaching from septic tanks and sewage; erosion of natural deposits
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Selenium
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: NA
Legal limit (MCL): 50 · Health goal (PHG): 30 — not an enforceable limit
Violation per report: No
Typical source, per the report: Discharge from petroleum, glass, and metal refineries; erosion of natural deposits; discharge from mines and chemical manufacturers; runoff from livestock lots (feed additive)
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Selenium
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: NA
Legal limit (MCL): 50 · Health goal (PHG): 30 — not an enforceable limit
Violation per report: No
Typical source, per the report: Discharge from petroleum, glass, and metal refineries; erosion of natural deposits; discharge from mines and chemical manufacturers; runoff from livestock lots (feed additive)
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Selenium
The utility reported: 0.014 ppb
Reported range: ND–0.029
Legal limit (MCL): 50 · Health goal (PHG): 30 — not an enforceable limit
Violation per report: No
Typical source, per the report: Discharge from petroleum, glass, and metal refineries; erosion of natural deposits; discharge from mines and chemical manufacturers; runoff from livestock lots (feed additive)
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Total Coliform Bacteria (positive samples)
The utility reported: 2 positive samples
Reported range: NA
Legal limit (MCL): TT · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: Naturally present in the environment
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Total Trihalomethanes [TTHMs]
The utility reported: 51 ppb
Reported range: 5–54
Legal limit (MCL): 80 · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: By-product of drinking water disinfection
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Total Trihalomethanes [TTHMs]
The utility reported: 50 ppb
Reported range: 29–60
Legal limit (MCL): 80 · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: By-product of drinking water disinfection
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Turbidity
The utility reported: 0.03 NTU
Reported range: NA
Legal limit (MCL): TT · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: Soil runoff
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Turbidity
The utility reported: 0.31 NTU
Reported range: NA
Legal limit (MCL): TT · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: Soil runoff
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Turbidity (lowest monthly percent of samples meeting limit)
The utility reported: 100 %
Reported range: NA
Legal limit (MCL): TT = 95% of samples meet the limit · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: Soil runoff
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Turbidity (lowest monthly percent of samples meeting limit)
The utility reported: 99.99 %
Reported range: NA
Legal limit (MCL): TT = 95% of samples meet the limit · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: Soil runoff
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Uranium
The utility reported: 1.8 pCi/L
Reported range: NA
Legal limit (MCL): 20 · Health goal (PHG): 0.43 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Uranium
The utility reported: Not detected at the report's stated reporting limit pCi/L
Reported range: NA
Legal limit (MCL): 20 · Health goal (PHG): 0.43 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Uranium
The utility reported: 4.0 pCi/L
Reported range: ND–4.01
Legal limit (MCL): 20 · Health goal (PHG): 0.43 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Copper
The utility reported: 0.33 ppm
Reported range: ND–0.69
AL: 1.3 · Health goal (PHG): 0.3 — not an enforceable limit
Violation per report: No
Typical source, per the report: Internal corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives
Tap water samples were collected for lead and copper analyses · report p. TEST RESULTS · official report
Lead
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: ND–ND
AL: 15 · Health goal (PHG): 0.2 — not an enforceable limit
Violation per report: No
Typical source, per the report: Corrosion of household plumbing systems; erosion of natural deposits
Tap water samples were collected for lead and copper analyses · report p. TEST RESULTS · official report
Ventura Water Department — unregulated monitoring and secondary (aesthetic) records (47)
Unregulated means monitored without an applicable enforceable legal limit (MCL) — it does not mean unimportant or illegal. Secondary records address aesthetic, cosmetic, or technical effects such as taste, odor, staining, or scale, and are not automatically primary health standards.
Chloride
The utility reported: 43 ppm
Reported range: 43–44
Typical source, per the report: Runoff/leaching from natural deposits; seawater influence
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Chloride
The utility reported: 16 ppm
Reported range: NA
Typical source, per the report: Runoff/leaching from natural deposits; seawater influence
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Chloride
The utility reported: 73 ppm
Reported range: 48–100
Typical source, per the report: Runoff/leaching from natural deposits; seawater influence
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Corrosivity
The utility reported: 11.9 units
Reported range: 11.8–11.9
Typical source, per the report: Natural or industrially influenced balance of hydrogen, carbon, and oxygen affected by temperature and other factors
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Corrosivity
The utility reported: 0.10 units
Reported range: NA
Typical source, per the report: Natural or industrially influenced balance of hydrogen, carbon, and oxygen affected by temperature and other factors
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Corrosivity
The utility reported: 12.40 units
Reported range: 12.3–12.5
Typical source, per the report: Natural or industrially influenced balance of hydrogen, carbon, and oxygen affected by temperature and other factors
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Manganese
The utility reported: 0.37 ppb
Reported range: ND–1.1
Typical source, per the report: Leaching from natural deposits
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Manganese
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: NA
Typical source, per the report: Leaching from natural deposits
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Manganese
The utility reported: 9 ppb
Reported range: 1–28
Typical source, per the report: Leaching from natural deposits
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
pH
The utility reported: 7.5 units
Reported range: 7.2–7.8
Typical source, per the report: Naturally occurring
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
pH
The utility reported: 7.5 units
Reported range: NA
Typical source, per the report: Naturally occurring
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Specific Conductance
The utility reported: 1022 µS/cm
Reported range: 922–1080
Typical source, per the report: Substances that form ions when in water; seawater influence
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Specific Conductance
The utility reported: 676 µS/cm
Reported range: NA
Typical source, per the report: Substances that form ions when in water; seawater influence
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Specific Conductance
The utility reported: 1714 µS/cm
Reported range: 1482–1950
Typical source, per the report: Substances that form ions when in water; seawater influence
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Sulfate
The utility reported: 291 ppm
Reported range: 281–308
Typical source, per the report: Runoff/leaching from natural deposits; industrial wastes
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Sulfate
The utility reported: 171 ppm
Reported range: NA
Typical source, per the report: Runoff/leaching from natural deposits; industrial wastes
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Sulfate
The utility reported: 612 ppm
Reported range: 493–755
Typical source, per the report: Runoff/leaching from natural deposits; industrial wastes
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Total Dissolved Solids
The utility reported: 723 ppm
Reported range: 700–750
Typical source, per the report: Runoff/leaching from natural deposits
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Total Dissolved Solids
The utility reported: 390 ppm
Reported range: NA
Typical source, per the report: Runoff/leaching from natural deposits
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Total Dissolved Solids
The utility reported: 1308 ppm
Reported range: 1093–1527
Typical source, per the report: Runoff/leaching from natural deposits
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Turbidity
The utility reported: 0.09 NTU
Reported range: ND–1.6
Typical source, per the report: Soil runoff
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Turbidity
The utility reported: 0.31 NTU
Reported range: NA
Typical source, per the report: Soil runoff
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Zinc
The utility reported: 10 ppm
Reported range: 10–20
Typical source, per the report: Runoff/leaching from natural deposits; industrial wastes
SECONDARY SUBSTANCES · report p. TEST RESULTS · official report
Alkalinity
The utility reported: 208 ppm
Reported range: 164–286
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Alkalinity
The utility reported: 160 ppm
Reported range: NA
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Boron
The utility reported: 400 ppb
Reported range: NA
Typical source, per the report: Erosion of natural deposits
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Boron
The utility reported: 160 ppb
Reported range: NA
Typical source, per the report: Erosion of natural deposits
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Boron
The utility reported: 0.47 ppb
Reported range: ND–0.60
Typical source, per the report: Erosion of natural deposits
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Calcium
The utility reported: 138 ppm
Reported range: 78–264
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Calcium
The utility reported: 69 ppm
Reported range: NA
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Hardness, Total [as CaCO3]
The utility reported: 437 ppm
Reported range: 424–463
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Hardness, Total [as CaCO3]
The utility reported: 263 ppm
Reported range: NA
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Hardness, Total [as CaCO3]
The utility reported: 637 ppm
Reported range: 489–911
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Lithium
The utility reported: 33 ppb
Reported range: 29–36
Typical source, per the report: Naturally occurring metal that may concentrate in brine waters; Lithium salts are used as pharmaceuticals, in electrochemical cells, batteries, and in organic syntheses
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Lithium
The utility reported: 15 ppb
Reported range: 14–15
Typical source, per the report: Naturally occurring metal that may concentrate in brine waters; Lithium salts are used as pharmaceuticals, in electrochemical cells, batteries, and in organic syntheses
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Lithium
The utility reported: 74 ppb
Reported range: 48–140
Typical source, per the report: Naturally occurring metal that may concentrate in brine waters; Lithium salts are used as pharmaceuticals, in electrochemical cells, batteries, and in organic syntheses
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Magnesium
The utility reported: 32 ppm
Reported range: 31–35
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Magnesium
The utility reported: 22 ppm
Reported range: NA
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Magnesium
The utility reported: 51 ppm
Reported range: 34–80
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Orthophospate
The utility reported: 0.7 ppm
Reported range: 0.4–1.0
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Potassium
The utility reported: 2 ppm
Reported range: 2–3
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Potassium
The utility reported: 3 ppm
Reported range: NA
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Potassium
The utility reported: 5.1 ppm
Reported range: 4–8
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Sodium
The utility reported: 49 ppm
Reported range: 48–52
Typical source, per the report: Naturally occurring salts
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Sodium
The utility reported: 23 ppm
Reported range: NA
Typical source, per the report: Naturally occurring salts
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Sodium
The utility reported: 128 ppm
Reported range: 87–213
Typical source, per the report: Naturally occurring salts
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Specific Conductance
The utility reported: 1170 µmho/cm
Reported range: 687–1932
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Casitas Municipal Water District — regulated contaminants reported as detected (10)
Barium
The utility reported: 0.1 ppm
Reported range: NA
Benchmark: 1 · Health goal (goal): 2 — not an enforceable limit
Violation per report: No
Typical source, per the report: Discharges of oil drilling wastes and from metal refineries; erosion of natural deposits
Reported constituent · report p. 4 · official report
Fluoride
The utility reported: 0.3 ppm
Reported range: NA
Benchmark: 2 · Health goal (goal): 1 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits; water additive that promotes strong teeth; discharge from fertilizer and aluminum factories
Reported constituent · report p. 4 · official report
Nitrate as N
The utility reported: 0.4 ppm
Reported range: 0.5 - 0.9
Benchmark: 10 · Health goal (goal): 10 — not an enforceable limit
Violation per report: No
Typical source, per the report: Runoff and leaching from fertilizer use; leaching from tanks and sewage; erosion from natural deposits
Reported constituent · report p. 4 · official report
Perchlorate
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: ND - 1.2
Benchmark: 6 · Health goal (goal): 1 — not an enforceable limit
Violation per report: No
Typical source, per the report: Contamination from solid rocket propellant, fireworks, explosives, flares, matches and a variety of industries
Reported constituent · report p. 4 · official report
Gross Alpha Particle Activity
The utility reported: <3 pCi/L
Reported range: NA
Benchmark: 15 · Health goal (goal): 2 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
Reported constituent · report p. 4 · official report
Chloramines as Cl2
The utility reported: 2.8 ppm
Reported range: 1.4 - 4.0
Benchmark: 4.0 · Health goal (goal): 4.0 — not an enforceable limit
Violation per report: No
Typical source, per the report: Drinking water disinfectant added for treatment
Reported constituent · report p. 4 · official report
Trihalomethanes
The utility reported: 50 ppb
Reported range: 29 - 60
Benchmark: 80 · Health goal (goal): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: By-product of drinking water disinfection
Reported constituent · report p. 4 · official report
Haloacetic acids
The utility reported: 45 ppb
Reported range: 9 - 54
Benchmark: 60 · Health goal (goal): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: By-product of drinking water disinfection
Reported constituent · report p. 4 · official report
Lead
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: ND - ND
Benchmark: 15 · Health goal (goal): 0.2 — not an enforceable limit
Violation per report: No
Typical source, per the report: Internal corrosion of household plumbing systems; discharges from industrial manufacturers; erosion of natural products
Reported constituent · report p. 4 · official report
Copper
The utility reported: 0.5 ppm
Reported range: 0.1 - 0.6
Benchmark: 1.3 · Health goal (goal): 0.3 — not an enforceable limit
Violation per report: No
Typical source, per the report: Internal corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives
Reported constituent · report p. 4 · official report
Casitas Municipal Water District — unregulated monitoring and secondary (aesthetic) records (8)
Unregulated means monitored without an applicable enforceable legal limit (MCL) — it does not mean unimportant or illegal. Secondary records address aesthetic, cosmetic, or technical effects such as taste, odor, staining, or scale, and are not automatically primary health standards.
Boron
The utility reported: 160 ppb
Reported range: NA
Typical source, per the report: A naturally-occurring element
Reported constituent · report p. 5 · official report
Calcium
The utility reported: 69 ppm
Reported range: NA
Typical source, per the report: A naturally-occurring element
Reported constituent · report p. 5 · official report
Corrosivity (Langlier Index)
The utility reported: 0.1 NA
Reported range: NA
Typical source, per the report: Indicator of corrosivity. Water with a positive Langlier Index can be considered as non-corrosive
Reported constituent · report p. 5 · official report
Magnesium
The utility reported: 22 ppm
Reported range: NA
Typical source, per the report: A naturally-occurring element
Reported constituent · report p. 5 · official report
Potassium
The utility reported: 3 ppm
Reported range: NA
Typical source, per the report: A naturally-occurring element
Reported constituent · report p. 5 · official report
Vanadium
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: NA
Typical source, per the report: A naturally-occurring element
Reported constituent · report p. 5 · official report
Lithium
The utility reported: 15 ppb
Reported range: 14 - 15
Typical source, per the report: A naturally-occurring element
Reported constituent · report p. 5 · official report
29 Individual Per-and Polyfluoroalkyl Substances
The utility reported: Not detected at the report's stated reporting limit ppt
Reported range: ND
Typical source, per the report: Runoff / leaching from industrial processes , chemical factories, waste sites or sites using aqueous film-forming foam
Reported constituent · report p. 5 · official report
Saticoy Country Club — regulated contaminants reported as detected (13)
Arsenic
The utility reported: 2.5 ppb
Reported range: 2-3
Legal limit (MCL): 10 · Health goal (PHG): 0.004 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits; runoff from orchards; glass and electronics production wastes
TABLE 4 · report p. 4 · official report
Chlorine Residual
The utility reported: 1.8 ppm
Reported range: 1.1 - 2.2
MRDL: 4 · Health goal (MRDLG): 4 — not an enforceable limit
Violation per report: No
Typical source, per the report: Disinfectant added to treat the water
TABLE 4 · report p. 4 · official report
Total Chromium
The utility reported: 14 ppb
Reported range: ND-17
Legal limit (MCL): 50
Violation per report: No
Typical source, per the report: Erosion of natural deposits; discharge from fertilizer
TABLE 4 · report p. 4 · official report
Hexavalent Chromium
The utility reported: 0.09 ppb
Reported range: ND- 0.17
Legal limit (MCL): 10 · Health goal (PHG): 0.02 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits; industrial activities.
TABLE 4 · report p. 4 · official report
Fluoride
The utility reported: 0.3 ppm
Reported range: 0.3
Legal limit (MCL): 2 · Health goal (PHG): 1 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits; discharge from fertilizer
TABLE 4 · report p. 4 · official report
Gross Alpha Particle Activity
The utility reported: 15.4 pCi/L
Reported range: 10.9- 20.2
Legal limit (MCL): 15 · Health goal (PHG): 0 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
TABLE 4 · report p. 4 · official report
Nitrate as Nitrogen
The utility reported: 7.1 ppm
Reported range: 4.2 – 9.1
Legal limit (MCL): 10 · Health goal (PHG): 10 — not an enforceable limit
Violation per report: No
Typical source, per the report: Runoff and leaching from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
TABLE 4 · report p. 4 · official report
Selenium
The utility reported: 0.052 ppm
Reported range: 0.045-0.062
Legal limit (MCL): 0.050 · Health goal (PHG): 0.030 — not an enforceable limit
Violation per report: Yes
Typical source, per the report: Erosion of natural deposits; discharge from mines and chemical manufacturers; runoff from livestock lots (feed additive); discharge from petroleum, glass and metal refineries
TABLE 4 · report p. 4 · official report
Total Trihalomethanes
The utility reported: 42 ppb
Reported range: 42
Legal limit (MCL): 80 · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: By-product of drinking water chlorination
TABLE 4 · report p. 4 · official report
Total Haloacetic Acids
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: ND
Legal limit (MCL): 60 · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: By-product of drinking water chlorination
TABLE 4 · report p. 4 · official report
Uranium
The utility reported: 15.2 pCi/L
Reported range: 14.7- 15.7
Legal limit (MCL): 20 · Health goal (PHG): 0.43 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
TABLE 4 · report p. 4 · official report
Lead
The utility reported: 1.0 ppb
AL: 15 · Health goal (PHG): 2 — not an enforceable limit
Violation per report: No
Typical source, per the report: Internal corrosion of household water plumbing systems; discharges from industrial manufacturers; erosion of natural deposits
TABLE 2 · report p. 3 · official report
Copper
The utility reported: 365 ppb
AL: 1,300 · Health goal (PHG): 300 — not an enforceable limit
Violation per report: No
Typical source, per the report: Internal corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives
TABLE 2 · report p. 3 · official report
Saticoy Country Club — unregulated monitoring and secondary (aesthetic) records (7)
Unregulated means monitored without an applicable enforceable legal limit (MCL) — it does not mean unimportant or illegal. Secondary records address aesthetic, cosmetic, or technical effects such as taste, odor, staining, or scale, and are not automatically primary health standards.
Iron
The utility reported: 45 ppb
Reported range: ND-90
Typical source, per the report: Runoff and leaching from natural deposits
TABLE 5 · report p. 4 · official report
Manganese
The utility reported: 0.02 ppm
Reported range: 0.011-0.024
Typical source, per the report: Runoff and leaching from natural deposits
TABLE 5 · report p. 5 · official report
Potassium
The utility reported: 4 ppm
Reported range: 4
Typical source, per the report: Runoff and leaching from natural deposits
TABLE 5 · report p. 5 · official report
Turbidity
The utility reported: 0.3 ntu
Reported range: 0.2 – 1.10
Typical source, per the report: A measure of the cloudiness of the water and an indicator of water quality. High turbidity can hinder the effectiveness of disinfectants.
TABLE 5 · report p. 5 · official report
Zinc
The utility reported: 20 ppm
Reported range: 20
Typical source, per the report: Runoff and leaching from natural deposits and industrial uses
TABLE 5 · report p. 5 · official report
The Three C's — 3 of 3
Corrosion
What conditions could influence pipes, fixtures, and a water heater?
Ventura Water Department
Alkalinity
The utility reported: 208 ppm
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Alkalinity
The utility reported: 160 ppm
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Lead
The utility reported: Not detected at the report's stated reporting limit ppb
Tap water samples were collected for lead and copper analyses · report p. TEST RESULTS · official report
Copper
The utility reported: 0.33 ppm
Tap water samples were collected for lead and copper analyses · report p. TEST RESULTS · official report
Gross Alpha Particle Activity
The utility reported: 3.63 pCi/L
Reported range: NA
Typical source, per the report: Erosion of natural deposits
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Gross Alpha Particle Activity
The utility reported: Not detected at the report's stated reporting limit pCi/L
Reported range: NA
Typical source, per the report: Erosion of natural deposits
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Gross Alpha Particle Activity
The utility reported: 3.99 pCi/L
Reported range: ND–3.99
Typical source, per the report: Erosion of natural deposits
REGULATED SUBSTANCES · report p. TEST RESULTS · official report
Orthophospate
The utility reported: 0.7 ppm
Reported range: 0.4–1.0
Typical source, per the report: NA
UNREGULATED SUBSTANCES · report p. TEST RESULTS · official report
Casitas Municipal Water District
Chloride
The utility reported: 16 ppm
Reported range: NA
Reported constituent · report p. 5 · official report
Sulfate
The utility reported: 171 ppm
Reported range: NA
Reported constituent · report p. 5 · official report
Alkalinity - Total as CaCO3
The utility reported: 160 ppm
Reported range: NA
Reported constituent · report p. 5 · official report
pH
The utility reported: 7.5 pH standard units
Reported range: NA
Reported constituent · report p. 5 · official report
Gross Alpha Particle Activity
The utility reported: <3 pCi/L
Reported range: NA
Typical source, per the report: Erosion of natural deposits
Reported constituent · report p. 4 · official report
Lead
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: ND - ND
Typical source, per the report: Internal corrosion of household plumbing systems; discharges from industrial manufacturers; erosion of natural products
Reported constituent · report p. 4 · official report
Copper
The utility reported: 0.5 ppm
Reported range: 0.1 - 0.6
Typical source, per the report: Internal corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives
Reported constituent · report p. 4 · official report
Saticoy Country Club
Gross Alpha Particle Activity
The utility reported: 15.4 pCi/L
Reported range: 10.9- 20.2
Typical source, per the report: Erosion of natural deposits
TABLE 4 · report p. 4 · official report
Lead
The utility reported: 1.0 ppb
Typical source, per the report: Internal corrosion of household water plumbing systems; discharges from industrial manufacturers; erosion of natural deposits
TABLE 2 · report p. 3 · official report
Copper
The utility reported: 365 ppb
Typical source, per the report: Internal corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives
TABLE 2 · report p. 3 · official report
Whole-Home Relevance
What this may mean throughout your home
Local conditions can be relevant to equipment and fixtures — actual effects depend on your property.
Water heater (tank and tankless)
- What the local report can tell us
- The report's hardness and mineral values above are the system-level inputs most relevant to scale and sediment where water is heated.
- What a homeowner may notice
- Hardness minerals can contribute to scale on heating surfaces, sediment in tanks, and more frequent flushing or descaling needs.
- What the report cannot tell us
- Property-specific outcomes — actual effects depend on temperature, use, equipment design, installation, maintenance, and property plumbing.
- Responsible next step
- Inspect the actual water heater and plumbing when symptoms involve hot-water odor, scale, sediment, corrosion, flow, noise, or repeated service demand.
Dishwasher and washing machine
- What the local report can tell us
- Reported hardness and secondary (aesthetic) records are the relevant system-level context for spotting and residue.
- What a homeowner may notice
- Hard water can change soap behavior and may contribute to spotting on dishes and residue in laundry.
- What the report cannot tell us
- Property-specific outcomes — actual effects depend on temperature, use, equipment design, installation, maintenance, and property plumbing.
- Responsible next step
- Inspect the actual water heater and plumbing when symptoms involve hot-water odor, scale, sediment, corrosion, flow, noise, or repeated service demand.
Pipes, fixtures, faucets, and supply lines
- What the local report can tell us
- The corrosion-related inputs above (such as pH) describe the water entering the property — not the condition of any specific plumbing.
- What a homeowner may notice
- Mineral deposits can appear on aerators and fixtures; corrosion outcomes depend on materials, age, and water conditions together.
- What the report cannot tell us
- Property-specific outcomes — actual effects depend on temperature, use, equipment design, installation, maintenance, and property plumbing.
- Responsible next step
- Inspect the actual water heater and plumbing when symptoms involve hot-water odor, scale, sediment, corrosion, flow, noise, or repeated service demand.
Drinking and cooking water
- What the local report can tell us
- The contaminant records above show what the utility reported for the system and period, with each benchmark type labeled.
- What a homeowner may notice
- Taste, odor, or aesthetic preferences can be noticeable even when health-based standards are met.
- What the report cannot tell us
- Property-specific outcomes — actual effects depend on temperature, use, equipment design, installation, maintenance, and property plumbing.
- Responsible next step
- Inspect the actual water heater and plumbing when symptoms involve hot-water odor, scale, sediment, corrosion, flow, noise, or repeated service demand.
Decision Pathways
Treatment pathways to evaluate
Treatment is a decision pathway, not a product conclusion — no equipment can be responsibly chosen from city-level data alone.
The evaluation sequence we follow, in order:
- 1Define the concern
- 2Verify utility-level and home-specific evidence
- 3Choose point of treatment
- 4Verify the exact certified reduction claim for the exact model
- 5Review tradeoffs and maintenance
Water filtration
- Objective it can address
- Specific substances or aesthetic conditions (taste, odor, chlorine character).
- Point of treatment
- Point of entry or point of use, depending on the objective.
- Limitations to verify
- A filter works only for the conditions and reduction claims its exact design and certification support — filtration does not soften water.
Certification note: a standard number alone doesn't prove a product reduces every contaminant — the exact model's certified claim must match your objective.
Water softening
- Objective it can address
- Hardness minerals (calcium and magnesium) and the scale they can contribute to.
- Point of treatment
- Typically point of entry, confirmed by evaluation.
- Limitations to verify
- Softening primarily exchanges hardness minerals — it is not a universal contaminant-removal device.
Certification note: a standard number alone doesn't prove a product reduces every contaminant — the exact model's certified claim must match your objective.
Reverse osmosis
- Objective it can address
- Specified dissolved substances at a dedicated outlet, commonly drinking and cooking water.
- Point of treatment
- Typically point of use.
- Limitations to verify
- Produces a reject-water stream and needs pressure and maintenance; verify the exact NSF/ANSI 58 reduction claims for the exact model. It is not automatically the best system for every home.
Certification note: a standard number alone doesn't prove a product reduces every contaminant — the exact model's certified claim must match your objective.
When testing is the right next step
Use a certified laboratory when the concern is tap-specific, property-specific, or not resolved by the utility report.
When inspection is the right next step
Inspect the actual water heater and plumbing when symptoms involve hot-water odor, scale, sediment, corrosion, flow, noise, or repeated service demand.
Evidence You Can Check
Official reports, sources, and methodology
Official report — Ventura Water Department
2026 WATER QUALITY RESULTS CALENDAR YEAR 2025 · data year 2025 · Current 2025 monitoring cycle
View the 2025 Ventura Water Department Consumer Confidence ReportSource water, per the report: Ventura manages a water portfolio of three distinct sources: 1. Ventura River (Groundwater under the influence of surface water, located near Foster Park). 2. Casitas (Purchased treated surface water originating from Lake Casitas). 3. Groundwater Basins (Originates from three groundwater basins: Mound, Oxnard Plain, and Santa Paula).
Official report — Casitas Municipal Water District
CASITAS MUNICIPAL WATER DISTRICT, PWS CA5610024 - WATER QUALITY SUMMARY, 2025 DATA · data year 2025 · Current 2025 monitoring cycle
View the 2025 Casitas Municipal Water District Consumer Confidence Report (PDF)Source water, per the report: The Casitas Municipal Water District is supplied by a blend of groundwater and surface water that is treated before it is distributed to the public. The surface water comes from Lake Casitas, located near the junction of Highway 150 and Santa Ana Road. Lake Casitas receives runoff from its direct watershed, including Santa Ana Creek and Coyote Creek. Water is also diverted from the upper Ventura River via the Robles Diversion Canal. The groundwater is drawn from the Mira Monte Well, located in Mira Monte.
Official report — Saticoy Country Club
Drinking Water Quality Consumer Confidence Report (CCR) 2025 · data year 2025 · Current 2025 monitoring cycle
View the 2025 Saticoy Country Club Consumer Confidence ReportSource water, per the report: In 2025, the Saticoy Country Club (SCC) water system supplied drinking and irrigation water from both groundwater wells. The wells pump draw water from the Fox Canyon aquifer at a depth between 300 and 400 feet and are located on the golf course adjacent to residential structures.
Nearby community water profiles
Property-Specific Next Step
Request a Water Quality Evaluation
Request a water-heater and water-quality evaluation tailored to the property, equipment, and homeowner objective.
A property-specific evaluation confirms your goals, provider, tap conditions, plumbing, equipment, installation, and maintenance before any treatment recommendation — this profile alone is never used to prescribe equipment.
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