Your Local Water Profile: La Habra
This profile explains what the applicable water provider reported for La Habra, what those results may mean throughout a home, and where property-specific testing or inspection may still be needed.
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Water service can vary by address. Confirm the provider shown on your water bill before applying provider-specific results.
What the official water report says
Your water at a glance
City of La Habra
The report lists hardness as 258 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.
La Habra Heights County Water District
The report lists hardness as 327.3 mg/l; 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.
City of La Habra Water Division — compliance, as reported
The report states: “Your City of La Habra Water Division vigilantly safeguards its water supply, and as in years past, the water delivered to your home meets the quality standards required by federal and state regulatory agencies.”
Violations or advisories, as reported: No violations were reported. The report explicitly states that the water delivered to homes meets the quality standards required by federal and state regulatory agencies.
Suburban Water System - Whittier — compliance, as reported
The report states: “We are proud to report that again Suburban’s water meets or exceeds all standards. [section: Suburban Water Systems 2025 Annual Water Quality Report Available Online]”
LA HABRA HEIGHTS COUNTY WATER DISTRICT — compliance, as reported
The report states: “La Habra Heights County Water District monitored for Hexavalent Chromium and has not exceeded the annual running average of 10 ug/l.”
Violations or advisories, as reported: The Notification Level of 1 ug/l for 1,4-Dioxane was exceeded in two wells in 2024. Some people who use water containing 1,4-dioxane in excess of the Notification Level over many years may experience liver or kidney problems and may have an increased risk of getting cancer. Hexavalent Chromium (CR-6) was detected in several wells in 2024, but did not exceed the annual running average of 10 ug/l.
The Three C's — 1 of 3
Chemistry
What does this water tend to do in a home?
City of La Habra Water Division
Specific Conductance
The utility reported: 945 µmho/cm
groundwater · report p. PAGE 7 · official report
Alkalinity, total as CaCO3
The utility reported: 243 ppm
groundwater · report p. PAGE 8 · official report
Hardness, total as CaCO3
The utility reported: 258 ppm
groundwater · report p. PAGE 8 · official report
Odor
The utility reported: 1 threshold odor number
distribution system · report p. PAGE 6 · official report
Turbidity
The utility reported: Not detected at the report's stated reporting limit ntu
distribution system · report p. PAGE 6 · official report
Total Trihalomethanes
The utility reported: 59 ppb
distribution system · report p. PAGE 6 · official report
Lead
The utility reported: Not detected at the report's stated reporting limit ppb
90th percentile · report p. PAGE 6 · official report
Suburban Water System - Whittier
General mineral and treatment characteristics were not itemized in this provider's reviewed report. The official report link in the Sources section below is the authoritative record.
LA HABRA HEIGHTS COUNTY WATER DISTRICT
Total Hardness
The utility reported: 271 mg/l
MWD'S SURFACE WATER · report p. PAGE 8 · official report
Specific Conductance
The utility reported: 987.5 uS/cm
MWD'S SURFACE WATER · report p. PAGE 4 · official report
Total Dissolved Solids
The utility reported: 595 mg/l
GROUNDWATER · report p. PAGE 4 · official report
Total Dissolved Solids
The utility reported: 588.5 mg/l
MWD'S SURFACE WATER · report p. PAGE 4 · official report
Odor
The utility reported: 0.5 threshold odor number
MWD'S SURFACE WATER · report p. PAGE 4 · official report
Trihalomethanes-TTHMS
The utility reported: 54.3 µg/l
DISTRIBUTION SYSTEM · report p. PAGE 4 · official report
Haloacetic Acids
The utility reported: 2.6 µg/l
DISTRIBUTION SYSTEM · report p. PAGE 4 · official report
Total Chlorine Residual
The utility reported: 1.5 mg/l
DISTRIBUTION SYSTEM · report p. PAGE 4 · official report
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.
City of La Habra Water Division — regulated contaminants reported as detected (19)
Total Trihalomethanes
The utility reported: 59 ppb
Reported range: 3.7 - 56
Benchmark: 80
Violation per report: No
Typical source, per the report: Byproducts of Chlorine Disinfection
Reported constituent · report p. PAGE 6 · official report
Haloacetic Acids
The utility reported: 7 ppb
Reported range: 1 - 8.8
Benchmark: 60
Violation per report: No
Typical source, per the report: Byproducts of Chlorine Disinfection
Reported constituent · report p. PAGE 6 · official report
Chlorine Residual
The utility reported: 1.1 ppm
Reported range: 0.08 - 2.7
Benchmark: 4 · Health goal (goal): 4 — not an enforceable limit
Violation per report: No
Typical source, per the report: Disinfectant Added for Treatment
Reported constituent · report p. PAGE 6 · official report
Lead
The utility reported: Not detected at the report's stated reporting limit ppb
Benchmark: 15 · Health goal (goal): 0.2 — not an enforceable limit
Violation per report: No
Typical source, per the report: Corrosion of Household Plumbing
Reported constituent · report p. PAGE 6 · official report
Copper
The utility reported: 0.23 ppm
Benchmark: 1.3 · Health goal (goal): 0.3 — not an enforceable limit
Violation per report: No
Typical source, per the report: Corrosion of Household Plumbing
Reported constituent · report p. PAGE 6 · official report
Tetrachloroethylene, PCE
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: ND - 1.1
Benchmark: 5 · Health goal (goal): 0.06 — not an enforceable limit
Violation per report: No
Typical source, per the report: Industrial Waste Discharge
Reported constituent · report p. PAGE 7 · official report
Trichloroethylene, TCE
The utility reported: 0.75 ppb
Reported range: ND - 2.7
Benchmark: 5 · Health goal (goal): 1.7 — not an enforceable limit
Violation per report: No
Typical source, per the report: Industrial Waste Discharge
Reported constituent · report p. PAGE 7 · official report
Combined Radium
The utility reported: Not detected at the report's stated reporting limit pCi/L
Reported range: ND - 1
Benchmark: 5 · Health goal (goal): 0 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of Natural Deposits
Reported constituent · report p. PAGE 7 · official report
Gross Alpha Particle Activity
The utility reported: Not detected at the report's stated reporting limit pCi/L
Reported range: ND - 5
Benchmark: 15 · Health goal (goal): 0 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of Natural Deposits
Reported constituent · report p. PAGE 7 · official report
Gross Beta Particle Activity
The utility reported: 4 pCi/L
Reported range: ND - 5
Benchmark: 50 · Health goal (goal): 0 — not an enforceable limit
Violation per report: No
Typical source, per the report: Decay of Natural and Man-made Deposits
Reported constituent · report p. PAGE 7 · official report
Uranium
The utility reported: 2.1 pCi/l
Reported range: ND - 3.2
Benchmark: 20 · Health goal (goal): 0.43 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of Natural Deposits
Reported constituent · report p. PAGE 7 · official report
Aluminum
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: ND - 0.11
Benchmark: 1 · Health goal (goal): 0.6 — not an enforceable limit
Violation per report: No
Typical source, per the report: Treatment Process Residue, Natural Deposits
Reported constituent · report p. PAGE 7 · official report
Barium
The utility reported: Not detected at the report's stated reporting limit ppm
Reported range: ND - 0.14
Benchmark: 1 · 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. PAGE 7 · official report
Bromate
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: ND - 1.6
Benchmark: 10 · Health goal (goal): 0.1 — not an enforceable limit
Violation per report: No
Typical source, per the report: Byproduct of Drinking Water Ozonation
Reported constituent · report p. PAGE 7 · official report
Chromium, Hexavalent
The utility reported: 1.5 ppb
Reported range: ND - 3.4
Benchmark: 10 · Health goal (goal): 0.02 — not an enforceable limit
Violation per report: No
Typical source, per the report: Runoff or Leaching from Natural Deposits; Industrial Wastes
Reported constituent · report p. PAGE 7 · official report
Fluoride naturally-occurring
The utility reported: 0.35 ppm
Reported range: 0.31 - 0.4
Benchmark: 2 · Health goal (goal): 1 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of Natural Deposits
Reported constituent · report p. PAGE 7 · official report
Nitrate as N
The utility reported: 1.8 ppm
Reported range: ND - 4
Benchmark: 10 · Health goal (goal): 10 — not an enforceable limit
Violation per report: No
Typical source, per the report: Agriculture Runoff and Sewage
Reported constituent · report p. PAGE 7 · official report
Nitrate+Nitrite as N
The utility reported: 1.8 ppm
Reported range: ND - 4
Benchmark: 10 · Health goal (goal): 10 — not an enforceable limit
Violation per report: No
Typical source, per the report: Agriculture Runoff and Sewage
Reported constituent · report p. PAGE 7 · official report
Perchlorate
The utility reported: Not detected at the report's stated reporting limit ppb
Reported range: ND - 1.8
Benchmark: 6 · Health goal (goal): 1 — not an enforceable limit
Violation per report: No
Typical source, per the report: Industrial Waste Discharge
Reported constituent · report p. PAGE 7 · official report
City of La Habra Water Division — unregulated monitoring and secondary (aesthetic) records (19)
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.
Aluminum
The utility reported: Not detected at the report's stated reporting limit ppm
Reported range: ND - 110
Typical source, per the report: Treatment Process Residue, Natural Deposits
Reported constituent · report p. PAGE 7 · official report
Chloride
The utility reported: 73 ppm
Reported range: 23 - 120
Typical source, per the report: Runoff or Leaching from Natural Deposits
Reported constituent · report p. PAGE 7 · official report
Color
The utility reported: 1.3 color units
Reported range: ND - 5
Typical source, per the report: Runoff or Leaching from Natural Deposits
Reported constituent · report p. PAGE 7 · official report
Manganese
The utility reported: 18 ppb
Reported range: ND - 37
Typical source, per the report: Runoff or Leaching from Natural Deposits
Reported constituent · report p. PAGE 7 · official report
Odor
The utility reported: 1 threshold odor number
Reported range: 1
Typical source, per the report: Naturally-occurring Organic Materials
Reported constituent · report p. PAGE 7 · official report
Specific Conductance
The utility reported: 945 µmho/cm
Reported range: 520 - 1,400
Typical source, per the report: Substances that Form Ions in Water
Reported constituent · report p. PAGE 7 · official report
Sulfate
The utility reported: 134 ppm
Reported range: 45 - 253
Typical source, per the report: Runoff or Leaching from Natural Deposits
Reported constituent · report p. PAGE 7 · official report
Total Dissolved Solids
The utility reported: 568 ppm
Reported range: 310 - 830
Typical source, per the report: Runoff or Leaching from Natural Deposits
Reported constituent · report p. PAGE 7 · official report
Turbidity
The utility reported: 0.17 ntu
Reported range: ND - 0.35
Typical source, per the report: Runoff or Leaching from Natural Deposits
Reported constituent · report p. PAGE 7 · official report
Alkalinity, total as CaCO3
The utility reported: 243 ppm
Reported range: 105 - 320
Typical source, per the report: Runoff or Leaching from Natural Deposits
Reported constituent · report p. PAGE 8 · official report
Boron
The utility reported: 0.26 ppm
Reported range: ND - 0.53
Typical source, per the report: Runoff or Leaching from Natural Deposits
Reported constituent · report p. PAGE 8 · official report
Calcium
The utility reported: 68 ppm
Reported range: 58 - 78
Typical source, per the report: Runoff or Leaching from Natural Deposits
Reported constituent · report p. PAGE 8 · official report
Hardness, total as CaCO3
The utility reported: 258 ppm
Reported range: 220 - 305
Typical source, per the report: Runoff or Leaching from Natural Deposits
Reported constituent · report p. PAGE 8 · official report
Hardness, total
The utility reported: 15 grains/gallon
Reported range: 13 - 18
Typical source, per the report: Runoff or Leaching from Natural Deposits
Reported constituent · report p. PAGE 8 · official report
Magnesium
The utility reported: 22 ppm
Reported range: 12 - 37
Typical source, per the report: Runoff or Leaching from Natural Deposits
Reported constituent · report p. PAGE 8 · official report
pH
The utility reported: 7.7 pH unit
Reported range: 7.6 - 8.2
Typical source, per the report: Hydrogen Ion Concentration
Reported constituent · report p. PAGE 8 · official report
Potassium
The utility reported: 4 ppm
Reported range: 3.3 - 5.4
Typical source, per the report: Runoff or Leaching from Natural Deposits
Reported constituent · report p. PAGE 8 · official report
Sodium
The utility reported: 102 ppm
Reported range: 17 - 190
Typical source, per the report: Runoff or Leaching from Natural Deposits
Reported constituent · report p. PAGE 8 · official report
Total Organic Carbon
The utility reported: NR ppm
Reported range: 2 - 2.5
Typical source, per the report: Various Natural and Man-made Sources
Reported constituent · report p. PAGE 8 · official report
Suburban Water System - Whittier — regulated contaminants reported as detected (0)
No itemized regulated-detection records were extracted from this provider's reviewed report. That is a limit of the extraction, not a claim that nothing was detected — the official report linked below is authoritative.
LA HABRA HEIGHTS COUNTY WATER DISTRICT — regulated contaminants reported as detected (21)
Aluminum
The utility reported: 0.004 mg/l
Reported range: ND - 0.03
Benchmark: 1 · Health goal (goal): 0.6 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits; residue from surface water treatment processes.
Reported constituent · report p. PAGE 4 · official report
Aluminum (MWD)
The utility reported: 46.5 mg/l
Reported range: ND - 150
Benchmark: 1 · Health goal (goal): 0.6 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits; residue from surface water treatment processes.
Reported constituent · report p. PAGE 4 · official report
Arsenic
The utility reported: 3.2 µg/l
Reported range: 2.4 - 3.8
Benchmark: 10 · Health goal (goal): 0.004 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits; glass/electronics production wastes; runoff
Reported constituent · report p. PAGE 4 · official report
Barium
The utility reported: 0.05 mg/l
Reported range: ND - 0.08
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. PAGE 4 · official report
Barium (MWD)
The utility reported: 0.12 mg/l
Reported range: ND
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. PAGE 4 · official report
Fluoride
The utility reported: 0.2 mg/l
Reported range: 0.19 - 0.28
Benchmark: 2.0 · 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
Reported constituent · report p. PAGE 4 · official report
Fluoride (MWD)
The utility reported: 0.7 mg/l
Reported range: 0.3 - 0.8
Benchmark: 2.0 · 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
Reported constituent · report p. PAGE 4 · official report
Hexavalent Chromium
The utility reported: 0.7 ug/l
Reported range: 0.57 - 0.81
Benchmark: 10 · Health goal (goal): 0.02 — not an enforceable limit
Violation per report: No
Typical source, per the report: Discharge from electroplating factories, leather tanneries, wood preservation, chemical synthesis, refractory production, and textile manufacturing facilities; erosion of natural deposits.
Reported constituent · report p. PAGE 4 · official report
Nitrate
The utility reported: 3.7 mg/l as N
Reported range: 3.5 - 4.0
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 / septic tanks / sewage, natural erosion
Reported constituent · report p. PAGE 4 · official report
Gross Alpha
The utility reported: 1.9 pCi/l
Reported range: ND - 4.5
Benchmark: 15 · Health goal (goal): 0 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
Reported constituent · report p. PAGE 4 · official report
Gross Alpha (MWD)
The utility reported: Not detected at the report's stated reporting limit pCi/l
Reported range: ND - 5.0
Benchmark: 15 · Health goal (goal): 0 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
Reported constituent · report p. PAGE 4 · official report
Gross Beta (MWD)
The utility reported: 2.0 pCi/l
Reported range: ND - 5.0
Benchmark: 50 · Health goal (goal): 0 — not an enforceable limit
Violation per report: No
Typical source, per the report: Decay of natural and man-made deposits
Reported constituent · report p. PAGE 4 · official report
Radium 228
The utility reported: 1.9 pCi/l
Reported range: ND - 7.7
Benchmark: 5 · Health goal (goal): 0.019 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
Reported constituent · report p. PAGE 4 · official report
Uranium
The utility reported: 3.1 pCi/l
Reported range: 1.5 - 3.7
Benchmark: 20 · Health goal (goal): 0.5 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
Reported constituent · report p. PAGE 4 · official report
Uranium (MWD)
The utility reported: Not detected at the report's stated reporting limit pCi/l
Reported range: ND - 3.0
Benchmark: 20 · Health goal (goal): 0.5 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
Reported constituent · report p. PAGE 4 · official report
Total Coliform Bacteria
The utility reported: 0 # POSITIVE
Reported range: 0.0 - 0.08
Benchmark: > 1 positive · Health goal (goal): 0 — not an enforceable limit
Violation per report: No
Typical source, per the report: Naturally present in the environment
Reported constituent · report p. PAGE 4 · official report
Trihalomethanes-TTHMS
The utility reported: 54.3 µg/l
Reported range: 9.7 - 72.0
Benchmark: 80
Violation per report: No
Typical source, per the report: By-product of drinking water chlorination
Reported constituent · report p. PAGE 4 · official report
Haloacetic Acids
The utility reported: 2.6 µg/l
Reported range: 0.0 - 5.2
Benchmark: 60
Violation per report: No
Typical source, per the report: By-product of drinking water disinfection
Reported constituent · report p. PAGE 4 · official report
Total Chlorine Residual
The utility reported: 1.5 mg/l
Reported range: 0.8 - 2.0
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. PAGE 4 · official report
Copper
The utility reported: 0.4 mg/l
Benchmark: 1.3 AL · Health goal (goal): 0.3 — not an enforceable limit
Violation per report: No
Typical source, per the report: Internal corrosion of household plumbing, erosion of natural deposits
Reported constituent · report p. PAGE 4 · official report
Lead
The utility reported: 1.7 µg/l
Benchmark: 15 AL · Health goal (goal): 0.2 — not an enforceable limit
Violation per report: No
Typical source, per the report: Internal corrosion of household plumbing, industrial manufacturer discharges.
Reported constituent · report p. PAGE 4 · official report
LA HABRA HEIGHTS COUNTY WATER DISTRICT — unregulated monitoring and secondary (aesthetic) records (42)
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.
Aggressiveness Index (corrosivity)
The utility reported: 12.1
Reported range: 11.6 - 12.3
Typical source, per the report: Natural/industrially-influenced balance of hydrogen/carbon/oxygen in water
Reported constituent · report p. PAGE 4 · official report
Aggressiveness Index (corrosivity) (MWD)
The utility reported: 12.5
Reported range: 12.4 - 12.6
Typical source, per the report: Natural/industrially-influenced balance of hydrogen/carbon/oxygen in water
Reported constituent · report p. PAGE 4 · official report
Aluminum
The utility reported: 4.3 µg/l
Reported range: ND - 26
Typical source, per the report: Erosion of natural deposits, surface water treatment process residue
Reported constituent · report p. PAGE 4 · official report
Aluminum (MWD)
The utility reported: 46.5 µg/l
Reported range: ND - 0.15
Typical source, per the report: Erosion of natural deposits, surface water treatment process residue
Reported constituent · report p. PAGE 4 · official report
Chloride
The utility reported: 110 mg/l
Reported range: 110
Typical source, per the report: Runoff/leaching from natural deposits, seawater influence
Reported constituent · report p. PAGE 4 · official report
Chloride (MWD)
The utility reported: 105 mg/l
Reported range: 96 - 116
Typical source, per the report: Runoff/leaching from natural deposits, seawater influence
Reported constituent · report p. PAGE 4 · official report
Color (MWD)
The utility reported: 1.5 color units
Reported range: 1.0 - 2.0
Typical source, per the report: Naturally-occurring organic materials
Reported constituent · report p. PAGE 4 · official report
Iron
The utility reported: 9.8 ug/l
Reported range: ND - 39
Typical source, per the report: Leaching from natural deposits; industrial waste
Reported constituent · report p. PAGE 4 · official report
Odor (MWD)
The utility reported: 0.5 threshold odor number
Reported range: ND - 1.0
Typical source, per the report: Naturally-occurring organic materials.
Reported constituent · report p. PAGE 4 · official report
Specific Conductance
The utility reported: 970 uS/cm
Reported range: 940 - 1000
Typical source, per the report: Substances that form ions when in water, seawater influence
Reported constituent · report p. PAGE 4 · official report
Specific Conductance (MWD)
The utility reported: 987.5 uS/cm
Reported range: 888 - 1080
Typical source, per the report: Substances that form ions when in water, seawater influence
Reported constituent · report p. PAGE 4 · official report
Sulfate
The utility reported: 150 mg/l
Reported range: 130 - 170
Typical source, per the report: Runoff/leaching from natural deposits, industrial wastes
Reported constituent · report p. PAGE 4 · official report
Sulfate (MWD)
The utility reported: 224.5 mg/l
Reported range: 196 - 253
Typical source, per the report: Runoff/leaching from natural deposits, industrial wastes
Reported constituent · report p. PAGE 4 · official report
Total Dissolved Solids
The utility reported: 595 mg/l
Reported range: 550 - 620
Typical source, per the report: Runoff/leaching from natural deposits
Reported constituent · report p. PAGE 4 · official report
Total Dissolved Solids (MWD)
The utility reported: 588.5 mg/l
Reported range: 492 - 682
Typical source, per the report: Runoff/leaching from natural deposits
Reported constituent · report p. PAGE 4 · official report
Turbidity
The utility reported: 0.04 NTU
Reported range: ND - 0.15
Typical source, per the report: Soil runoff
Reported constituent · report p. PAGE 4 · official report
Turbidity (Distribution)
The utility reported: 0.1 NTU
Reported range: ND - 0.3
Typical source, per the report: Soil runoff
Reported constituent · report p. PAGE 4 · official report
Alkalinity
The utility reported: 190.0 mg/l
Reported range: 180 - 200
Reported constituent · report p. PAGE 4 · official report
Alkalinity (MWD)
The utility reported: 116 mg/l
Reported range: 105 - 127
Reported constituent · report p. PAGE 8 · official report
Boron (MWD)
The utility reported: 140 μg/l
Reported range: 140
Reported constituent · report p. PAGE 8 · official report
Calcium
The utility reported: 100.1 mg/l
Reported range: 90.6 - 111
Reported constituent · report p. PAGE 4 · official report
Calcium (MWD)
The utility reported: 68 mg/l
Reported range: 58 - 78
Reported constituent · report p. PAGE 8 · official report
1,4-Dioxane
The utility reported: 1.0 ug/l
Reported range: 0.8 - 1.1
Reported constituent · report p. PAGE 4 · official report
Magnesium
The utility reported: 18.7 mg/l
Reported range: 17.5 - 20.0
Reported constituent · report p. PAGE 4 · official report
Magnesium (MWD)
The utility reported: 26 mg/l
Reported range: 22 - 29
Reported constituent · report p. PAGE 8 · official report
pH
The utility reported: 7.4 standard unit
Reported range: 6.9 - 7.6
Reported constituent · report p. PAGE 4 · official report
pH (MWD)
The utility reported: 8.2 standard unit
Reported range: 8.2
Reported constituent · report p. PAGE 8 · official report
Potassium
The utility reported: 4.8 mg/l
Reported range: 4.7 - 5.0
Reported constituent · report p. PAGE 4 · official report
Potassium (MWD)
The utility reported: 5.0 mg/l
Reported range: 4.4 - 5.4
Reported constituent · report p. PAGE 8 · official report
Sodium
The utility reported: 67.5 mg/l
Reported range: 64.0 - 71.0
Reported constituent · report p. PAGE 4 · official report
Sodium (MWD)
The utility reported: 104 mg/l
Reported range: 90 - 117
Reported constituent · report p. PAGE 8 · official report
Total Hardness
The utility reported: 327.3 mg/l
Reported range: 298 - 359
Reported constituent · report p. PAGE 4 · official report
Total Hardness (MWD)
The utility reported: 271 mg/l
Reported range: 235 - 305
Reported constituent · report p. PAGE 8 · official report
PERFLUOROBUTANESULFONIC ACID (PFBS)
The utility reported: 7.63 ng/l
Reported range: 5.8 - 8.9
Reported constituent · report p. PAGE 4 · official report
PERFLUOROBUTANOIC (PFBA)
The utility reported: 9.60 ng/l
Reported range: 8.4 - 11.0
Reported constituent · report p. PAGE 4 · official report
PERFLUOROHEPTANOIC ACID (PFHpA)
The utility reported: 2.15 ng/l
Reported range: 1.8 - 2.4
Reported constituent · report p. PAGE 4 · official report
PERFLUOROHEXANE SULFONIC ACID (PFHxS)
The utility reported: 4.30 ng/l
Reported range: 2.4 - 5.5
Reported constituent · report p. PAGE 4 · official report
PERFLUOROHEXANOIC ACID (PFHxA)
The utility reported: 7.37 ng/l
Reported range: 5.7 - 10.0
Reported constituent · report p. PAGE 4 · official report
PERFLUOROPENTANOIC (PFPEA)
The utility reported: 9.32 ng/l
Reported range: 6.7 - 13.0
Reported constituent · report p. PAGE 4 · official report
PERFLUORONONANOIC ACID (PFNA)
The utility reported: 1.83 ng/l
Reported range: ND - 2.8
Reported constituent · report p. PAGE 4 · official report
PERFLUOROOCTANE SULFONIC ACID (PFOS)
The utility reported: 22.58 ng/l
Reported range: 13 - 30
Reported constituent · report p. PAGE 4 · official report
PERFLUOROOCTANOIC ACID (PFOA)
The utility reported: 11.02 ng/l
Reported range: 8.2 - 13.0
Reported constituent · report p. PAGE 4 · official report
The Three C's — 3 of 3
Corrosion
What conditions could influence pipes, fixtures, and a water heater?
City of La Habra Water Division
Alkalinity, total as CaCO3
The utility reported: 243 ppm
groundwater · report p. PAGE 8 · official report
Lead
The utility reported: Not detected at the report's stated reporting limit ppb
90th percentile · report p. PAGE 6 · official report
Gross Alpha Particle Activity
The utility reported: Not detected at the report's stated reporting limit pCi/L
Reported range: ND - 5
Typical source, per the report: Erosion of Natural Deposits
Reported constituent · report p. PAGE 7 · official report
Suburban Water System - Whittier
Corrosion-related inputs (such as pH or alkalinity) were not itemized in this provider's reviewed report.
LA HABRA HEIGHTS COUNTY WATER DISTRICT
Gross Alpha (MWD)
The utility reported: Not detected at the report's stated reporting limit pCi/l
Reported range: ND - 5.0
Typical source, per the report: Erosion of natural deposits
Reported constituent · report p. PAGE 4 · official report
Chloride (MWD)
The utility reported: 105 mg/l
Reported range: 96 - 116
Typical source, per the report: Runoff/leaching from natural deposits, seawater influence
Reported constituent · report p. PAGE 4 · official report
Sulfate (MWD)
The utility reported: 224.5 mg/l
Reported range: 196 - 253
Typical source, per the report: Runoff/leaching from natural deposits, industrial wastes
Reported constituent · report p. PAGE 4 · official report
Alkalinity (MWD)
The utility reported: 116 mg/l
Reported range: 105 - 127
Reported constituent · report p. PAGE 8 · official report
pH (MWD)
The utility reported: 8.2 standard unit
Reported range: 8.2
Reported constituent · report p. PAGE 8 · 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 — City of La Habra Water Division
2025 Water Quality Report · data year 2024 · 2024 data retained; monitor for the next official update
View the 2024 City of La Habra Water Division Consumer Confidence ReportSource water, per the report: The drinking water is a blend of surface water imported by MWDSC, groundwater imported from Cal Domestic, and two wells within the city. Cal Domestic water originates from the main San Gabriel groundwater basin. MWDSC's imported water sources are the Colorado River and the State Water Project. City wells draw water from La Habra Groundwater Basin.
Official report — Suburban Water System - Whittier
Suburban Water Systems 2025 Annual Water Quality Report · data year 2025 · Current 2025 monitoring cycle
View the 2025 Suburban Water System - Whittier Consumer Confidence ReportOfficial report — LA HABRA HEIGHTS COUNTY WATER DISTRICT
2024 CONSUMER CONFIDENCE REPORT · data year 2024 · 2024 data retained; monitor for the next official update
View the 2024 LA HABRA HEIGHTS COUNTY WATER DISTRICT Consumer Confidence ReportSource water, per the report: Tap water comes from 2 sources: groundwater and surface water. Groundwater is pumped from local, deep wells in the Central Basin. Surface water is imported from the Metropolitan Water District of Southern California (MWD), originating from both the Colorado River and the State Water Project in northern California.
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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