Your Local Water Profile: West Hollywood
This profile explains what the applicable water provider reported for West Hollywood, 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
Los Angeles Department of Water and Power
The report lists hardness as 103-236 mg/L as CaCO3; this is ranges from moderately hard to 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.
Beverly Hills-city, Water Dept.
The report lists hardness as 234 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.
Los Angeles Department of Water and Power (LADWP) — compliance, as reported
The report states: “LADWP met and complied with all the primary drinking water standards in 2025. [p. 3, Regulatory Compliance]”
Violations or advisories, as reported: Chlorate detected above notification level at Cyprean Tank and Highway Highland Tank in January 2026. Solano Reservoir Significant Deficiency identified May 31, 2023 due to roof holes. Maclay Reservoir Significant Deficiency identified October 17, 2025 due to roof holes. Total Trihalomethanes exceeded MCL at Griffith Park in September 2023.
City of Beverly Hills — compliance, as reported
The report states: “Beverly Hills’ drinking water continues to meet or exceed all requirements established by the U.S. Environmental Protection Agency and the State Water Resources Control Board, and we are proud to report another year of full compliance with all water quality standards. [p. 2]”
The Three C's — 1 of 3
Chemistry
What does this water tend to do in a home?
Los Angeles Department of Water and Power (LADWP)
Hardness, Total
The utility reported: 103-236 mg/L as CaCO3
Table III · report p. 25 · official report
Alkalinity, Total
The utility reported: 98-110 mg/L as CaCO3
Table III · report p. 25 · official report
Total Dissolved Solids (TDS)
The utility reported: 234-545 mg/L
Table II · report p. 24 · official report
Chlorine Residual, Total
The utility reported: 1.7 mg/L
Table I (CONT'D) · report p. 23 · official report
City of Beverly Hills
Hardness, Total (as CaCO3)
The utility reported: 234 ppm
OTHER PARAMETERS · report p. 12 · official report
Alkalinity, Total (as CaCO3)
The utility reported: 211 ppm
OTHER PARAMETERS · report p. 12 · official report
Total Dissolved Solids, Filterable (TDS)
The utility reported: 536 ppm
OTHER PARAMETERS · report p. 12 · official report
Chloride
The utility reported: 92 ppm
SECONDARY STANDARDS—Aesthetic Standards · report p. 12 · official report
Sulfate
The utility reported: 176 ppm
SECONDARY STANDARDS—Aesthetic Standards · report p. 12 · official report
Lead
The utility reported: 0.72 ppb
LEAD AND COPPER RESULTS AT RESIDENTIAL TAP · report p. 16 · official report
Copper
The utility reported: 240 ppb
LEAD AND COPPER RESULTS AT RESIDENTIAL TAP · report p. 16 · official report
Total Chlorine Residual
The utility reported: 1.8 ppm
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 15 · official report
Calcium Carbonate Precipitation Potential (CCPP) (as CaCO3)
The utility reported: 8.6 ppm
MISCELLANEOUS · report p. 14 · official report
Corrosivity (as Aggressiveness Index)
The utility reported: 12.4 NA
MISCELLANEOUS · report p. 14 · official report
Corrosivity (as Saturation Index)
The utility reported: 0.56 NA
MISCELLANEOUS · report p. 14 · 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.
Los Angeles Department of Water and Power (LADWP) — regulated contaminants reported as detected (18)
Aluminum
The utility reported: 600 µg/L
Reported range: <50-100
Legal limit (MCL): 1000 · Health goal (PHG): 600 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits; residue from surface water treatment processes
Table I · report p. 22 · official report
Arsenic
The utility reported: 3.3 µg/L
Reported range: <2-7.0
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
Table I · report p. 22 · official report
Barium
The utility reported: 130 µg/L
Reported range: <100-130
Legal limit (MCL): 1000 · Health goal (PHG): 2000 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
Table I · report p. 22 · official report
Bromate
The utility reported: 4.1 µg/L
Reported range: <1-12
Legal limit (MCL): 10 · Health goal (PHG): 0.1 — not an enforceable limit
Violation per report: No
Typical source, per the report: By-product of ozone disinfection; formed under sunlight for chlorinated water
Table I · report p. 22 · official report
Chromium (Hexavalent)
The utility reported: 0.1 µg/L
Reported range: <0.1-0.6
Legal limit (MCL): 10 · Health goal (PHG): 0.02 — not an enforceable limit
Violation per report: No
Typical source, per the report: Industrial discharge; erosion of natural deposits
Table I · report p. 22 · official report
Fluoride
The utility reported: 0.8 mg/L
Reported range: 0.2-0.8
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; water additive that promotes strong teeth
Table I · report p. 22 · official report
Gross Alpha Particle Activity
The utility reported: 5 pCi/L
Reported range: <3-5
Legal limit (MCL): 15 · Health goal (PHG): none — not an enforceable limit
Violation per report: No
Typical source, per the report: Naturally present in the environment
Table I · report p. 22 · official report
Gross Beta Particle Activity
The utility reported: 4.2 pCi/L
Reported range: <4-6
Legal limit (MCL): 50 · Health goal (PHG): none — not an enforceable limit
Violation per report: No
Typical source, per the report: Naturally present in the environment
Table I · report p. 22 · official report
Nitrate (as N)
The utility reported: <0.4 mg/L
Reported range: <0.4-1.4
Legal limit (MCL): 10 · Health goal (PHG): 10 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits; runoff and leaching from fertilizer use
Table I · report p. 22 · official report
Turbidity
The utility reported: 0.1 NTU
TT: 1 · Health goal (PHG): none — not an enforceable limit
Violation per report: No
Typical source, per the report: Soil runoff
Table I · report p. 22 · official report
Uranium
The utility reported: 3.4 pCi/L
Reported range: <1-4.8
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 I · report p. 22 · official report
Bromate (uncovered reservoirs)
The utility reported: 1.3 µg/L
Reported range: <1-2.2
Legal limit (MCL): 10 · Health goal (PHG): 0.1 — not an enforceable limit
Violation per report: No
Typical source, per the report: By-product of ozone disinfection; formed under sunlight for chlorinated water
Table I (CONT'D) · report p. 23 · official report
Chlorine Residual, Total
The utility reported: 1.7 mg/L
Reported range: 1.4-2
MRDL: 4 · Health goal (MRDLG): 4 — not an enforceable limit
Violation per report: No
Typical source, per the report: Drinking water disinfectant added for treatment
Table I (CONT'D) · report p. 23 · official report
Copper (at-the-tap)
The utility reported: 529 µg/L
AL: 1300 · Health goal (PHG): 300 — not an enforceable limit
Violation per report: No
Typical source, per the report: Internal corrosion of household water plumbing systems
Table I (CONT'D) · report p. 23 · official report
Haloacetic Acids (Five) (HAA5)
The utility reported: 13.4 µg/L
Reported range: 4-14.7
Legal limit (MCL): 60 · Health goal (PHG): none — not an enforceable limit
Violation per report: No
Typical source, per the report: By-product of drinking water disinfection
Table I (CONT'D) · report p. 23 · official report
Lead (at-the-tap)
The utility reported: <5 µg/L
AL: 15 · Health goal (PHG): 0.2 — not an enforceable limit
Violation per report: No
Typical source, per the report: Internal corrosion of household water plumbing systems
Table I (CONT'D) · report p. 23 · official report
Total Coliform Bacteria
The utility reported: 3.4 % Positives
Reported range: 0% - 3.4%
Legal limit (MCL): ≤5% of monthly samples · Health goal (PHG): none — not an enforceable limit
Violation per report: No
Typical source, per the report: Naturally present in the environment
Table I (CONT'D) · report p. 23 · official report
Total Trihalomethanes (TTHM)
The utility reported: 33.8 µg/L
Reported range: 15.2 - 35.2
Legal limit (MCL): 80 · Health goal (PHG): none — not an enforceable limit
Violation per report: No
Typical source, per the report: By-product of drinking water chlorination
Table I (CONT'D) · report p. 23 · official report
Los Angeles Department of Water and Power (LADWP) — unregulated monitoring and secondary (aesthetic) records (29)
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: 96 µg/L
Reported range: <50-100
Typical source, per the report: Erosion of natural deposits; residue from some surface water treatment processes
Table II · report p. 24 · official report
Chloride
The utility reported: 92 mg/L
Reported range: 24-99
Typical source, per the report: Runoff / leaching from natural deposits; seawater influence
Table II · report p. 24 · official report
Color, Apparent (unfiltered)
The utility reported: 3 ACU
Reported range: 1-3
Typical source, per the report: Naturally-occurring organic materials
Table II · report p. 24 · official report
Copper
The utility reported: <50 µg/L
Reported range: <50
Typical source, per the report: Internal corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives
Table II · report p. 24 · official report
Foaming Agents
The utility reported: <50 µg/L
Reported range: <50-60
Typical source, per the report: Municipal and industrial waste discharges
Table II · report p. 24 · official report
Iron
The utility reported: <100 µg/L
Reported range: <20-20
Typical source, per the report: Leaching from natural deposits; industrial wastes
Table II · report p. 24 · official report
Manganese
The utility reported: <5 µg/L
Reported range: <2-3.5
Typical source, per the report: Leaching from natural deposits
Table II · report p. 24 · official report
Specific Conductance
The utility reported: 873 µS/cm at 25°C
Reported range: <15-987
Typical source, per the report: Substances that form ions when in water; seawater influence
Table II · report p. 24 · official report
Sulfate (as SO4)
The utility reported: 182 mg/L
Reported range: 24-218
Typical source, per the report: Runoff / leaching from natural deposits
Table II · report p. 24 · official report
Total Dissolved Solids (TDS)
The utility reported: 545 mg/L
Reported range: 187-625
Typical source, per the report: Runoff / leaching from natural deposits
Table II · report p. 24 · official report
Turbidity
The utility reported: 0.2 NTU
Reported range: <0.1-0.2
Typical source, per the report: Soil runoff
Table II · report p. 24 · official report
Zinc
The utility reported: <0.05 mg/L
Reported range: <0.01-0.01
Typical source, per the report: Runoff/leaching from natural deposits; industrial wastes
Table II · report p. 24 · official report
Alkalinity, Total (as CaCO3)
The utility reported: 110 mg/L
Reported range: 86-124
Typical source, per the report: Erosion of natural deposits
Table III · report p. 25 · official report
Ammonia + Chloramines (as N)
The utility reported: 0.5 mg/L
Reported range: 0.3-1
Typical source, per the report: Drinking water disinfectant added for treatment
Table III · report p. 25 · official report
Bicarbonate Alkalinity (as HCO3)
The utility reported: 128 mg/L
Reported range: 105-139
Typical source, per the report: Naturally-occurring dissolved gas; erosion of natural deposits
Table III · report p. 25 · official report
Boron
The utility reported: 360 µg/L
Reported range: 172-514
Typical source, per the report: Erosion of natural deposits
Table III · report p. 25 · official report
Bromide
The utility reported: 0.05 mg/L
Reported range: <0.02-0.08
Typical source, per the report: Runoff / leaching from natural deposits; seawater influence
Table III · report p. 25 · official report
Calcium
The utility reported: 56 mg/L
Reported range: 22-70
Typical source, per the report: Erosion of natural deposits; natural hot springs
Table III · report p. 25 · official report
Chlorate
The utility reported: 32 µg/L
Reported range: <20-32
Typical source, per the report: Byproduct of drinking water chloramination and industrial processes
Table III · report p. 25 · official report
Hardness, Total (as CaCO3)
The utility reported: 236 mg/L
Reported range: 78-280
Typical source, per the report: Erosion of natural deposits
Table III · report p. 25 · official report
Lithium
The utility reported: 88 µg/L
Reported range: <10-128
Typical source, per the report: Erosion of natural deposits
Table III · report p. 25 · official report
Magnesium
The utility reported: 22 mg/L
Reported range: 6-25
Typical source, per the report: Erosion of natural deposits
Table III · report p. 25 · official report
N-Nitrosodimethyhlamine (NDMA)
The utility reported: 2.1 ng/L
Reported range: <2-2.1
Typical source, per the report: Byproduct of drinking water chloramination and industrial processes
Table III · report p. 25 · official report
pH
The utility reported: 8.3 Unit
Reported range: 7.0-8.7
Typical source, per the report: Naturally-occurring dissolved gas and minerals
Table III · report p. 25 · official report
Phosphate, Ortho (as PO4)
The utility reported: 0.03 mg/L
Reported range: <0.03-0.06
Typical source, per the report: Erosion of natural deposits
Table III · report p. 25 · official report
Potassium
The utility reported: 4.4 mg/L
Reported range: 2.8-5.0
Typical source, per the report: Erosion of natural deposits
Table III · report p. 25 · official report
Silica (as SiO2)
The utility reported: 15 mg/L
Reported range: 11-19
Typical source, per the report: Erosion of natural deposits
Table III · report p. 25 · official report
Sodium
The utility reported: 89 mg/L
Reported range: 32-100
Typical source, per the report: Erosion of natural deposits
Table III · report p. 25 · official report
Temperature
The utility reported: 18.0 ºC
Reported range: 8.1-28.6
Typical source, per the report: Natural seasonal fluctuation
Table III · report p. 25 · official report
City of Beverly Hills — regulated contaminants reported as detected (24)
Combined Filter Effluent (CFE) Turbidity
The utility reported: 0.2 NTU
Reported range: 0.06-0.2
TT: TT · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: Soil runoff
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Aluminum
The utility reported: 96 ppb
Reported range: ND-100
Legal limit (MCL): 1000 · Health goal (PHG): 600 — not an enforceable limit
Violation per report: No
Typical source, per the report: Residue from water treatment process; erosion of natural deposits
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Arsenic
The utility reported: 0.58 ppb
Reported range: ND-0.85
Legal limit (MCL): 10 · Health goal (PHG): 0.004 — not an enforceable limit
Violation per report: No
Typical source, per the report: Natural deposits erosion, glass and electronics production wastes
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Barium
The utility reported: 129 ppb
Reported range: ND-129
Legal limit (MCL): 1000 · Health goal (PHG): 2000 — not an enforceable limit
Violation per report: No
Typical source, per the report: Oil and metal refineries discharge; natural deposits erosion
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Chromium VI
The utility reported: 0.16 ppb
Reported range: ND-0.16
Legal limit (MCL): 10 · Health goal (PHG): 0.02 — not an enforceable limit
Violation per report: No
Typical source, per the report: Runoff/leaching from natural deposits; discharge from industrial wastes
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Cyanide
The utility reported: 5.8 ppb
Reported range: ND-5.8
Legal limit (MCL): 150 · Health goal (PHG): 150 — not an enforceable limit
Violation per report: No
Typical source, per the report: Discharge from steel/metal, plastic, and fertilizer factories
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Fluoride
The utility reported: 0.7 ppm
Reported range: 0.5-1.1
Legal limit (MCL): 2.0 · Health goal (PHG): 1 — not an enforceable limit
Violation per report: No
Typical source, per the report: Runoff and leaching from natural deposits; water additive that promotes strong teeth; discharge from fertilizer and aluminum factories
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Nitrate (as Nitrogen)
The utility reported: 0.36 ppm
Reported range: ND-0.36
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; septic tank and sewage; natural deposits erosion
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Gross Alpha Particle Activity
The utility reported: 0.3 pCi/L
Reported range: ND-0.9
Legal limit (MCL): 15 · Health goal (MCLG): 0 — not an enforceable limit
Violation per report: No
Typical source, per the report: Runoff/leaching from natural deposits
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Gross Beta Particle Activity
The utility reported: 1.3 pCi/L
Reported range: ND-5
Legal limit (MCL): 50 · Health goal (MCLG): 0 — not an enforceable limit
Violation per report: No
Typical source, per the report: Decay of natural and man-made deposits
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Combined Radium 226 + 228
The utility reported: 0.1 pCi/L
Reported range: ND-0.3
Legal limit (MCL): 5 · Health goal (MCLG): 0 — not an enforceable limit
Violation per report: No
Typical source, per the report: Erosion of natural deposits
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Strontium - 90
The utility reported: 0.3 pCi/L
Reported range: ND-0.5
Legal limit (MCL): 8 · Health goal (PHG): 0.35 — not an enforceable limit
Violation per report: No
Typical source, per the report: Decay of natural and man-made deposits
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Tritium
The utility reported: 27 pCi/L
Reported range: ND-73
Legal limit (MCL): 20000 · Health goal (PHG): 400 — not an enforceable limit
Violation per report: No
Typical source, per the report: Decay of natural and man-made deposits
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Uranium
The utility reported: 2 pCi/L
Reported range: ND-3
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
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Total Trihalomethanes (TTHM) (Plant Core Locations and Distribution System)
The utility reported: 31 ppb
Reported range: ND-30
Legal limit (MCL): 80 · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: Byproduct of drinking water chlorination
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Sum of Five Haloacetic Acids (HAA5) (Plant Core Locations and Distribution System)
The utility reported: 3.1 ppb
Reported range: ND-4.9
Legal limit (MCL): 60 · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: Byproduct of drinking water chlorination
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Bromate
The utility reported: 4.1 ppb
Reported range: ND-12
Legal limit (MCL): 10 · Health goal (PHG): 0.1 — not an enforceable limit
Violation per report: No
Typical source, per the report: Byproduct of drinking water ozonation
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Total Organic Carbon (TOC)
The utility reported: 2.5 ppm
Reported range: 1.6-2.8
TT: TT · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: Various natural and man-made sources; TOC is a precursor for the formation of disinfection byproducts
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · official report
Total Coliform Bacteria
The utility reported: 1.15% % Positive Monthly Samples
Reported range: 1.15%
Legal limit (MCL): 5.0 · Health goal (MCLG): 0 — not an enforceable limit
Violation per report: No
Typical source, per the report: Naturally present in the environment
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 15 · official report
Total Trihalomethanes (TTHM) (Distribution System)
The utility reported: 26 ppb
Reported range: 11-37
Legal limit (MCL): 80 · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: Byproduct of drinking water chlorination
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 15 · official report
Sum of Five Haloacetic Acids (HAA5) (Distribution System)
The utility reported: 8 ppb
Reported range: 1.9-9.4
Legal limit (MCL): 60 · Health goal (PHG): NA — not an enforceable limit
Violation per report: No
Typical source, per the report: Byproduct of drinking water chlorination
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 15 · official report
Total Chlorine Residual
The utility reported: 1.8 ppm
Reported range: 1.00-2.8
MRDL: 4.0 · Health goal (MRDLG): 4.0 — not an enforceable limit
Violation per report: No
Typical source, per the report: Drinking water disinfectant added for treatment
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 15 · official report
Lead
The utility reported: 0.72 ppb
Reported range: 0.72
AL: 15 · Health goal (PHG): 0.2 — not an enforceable limit
Violation per report: No
Typical source, per the report: Internal corrosion of household water plumbing systems; industrial manufacturers' discharge; runoff and leaching from natural deposits
LEAD AND COPPER RESULTS AT RESIDENTIAL TAP · report p. 16 · official report
Copper
The utility reported: 240 ppb
Reported range: 240
AL: 1300 · Health goal (PHG): 300 — not an enforceable limit
Violation per report: No
Typical source, per the report: Internal corrosion of household pipes; runoff and leaching from natural deposits; leaching from wood preservatives
LEAD AND COPPER RESULTS AT RESIDENTIAL TAP · report p. 16 · official report
City of Beverly Hills — unregulated monitoring and secondary (aesthetic) records (9)
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.
Color
The utility reported: 1 Color Units
Reported range: ND-3
Typical source, per the report: Naturally-occurring organic materials
SECONDARY STANDARDS—Aesthetic Standards · report p. 12 · official report
Odor Threshold
The utility reported: Not detected at the report's stated reporting limit TON
Reported range: ND-2
Typical source, per the report: Naturally-occurring organic materials
SECONDARY STANDARDS—Aesthetic Standards · report p. 12 · official report
Specific Conductance
The utility reported: 868 µS/cm
Reported range: 503-981
Typical source, per the report: Substances that form ions in water; seawater influence
SECONDARY STANDARDS—Aesthetic Standards · report p. 12 · official report
Potassium
The utility reported: 4.4 ppm
Reported range: 2.8-5
Typical source, per the report: Salt present in the water; naturally-occurring
OTHER PARAMETERS · report p. 12 · official report
Boron
The utility reported: 190 ppb
Reported range: 130-190
Typical source, per the report: Runoff/leaching from natural deposits; industrial wastes
UNREGULATED CONTAMINANTS · report p. 12 · official report
Chlorate
The utility reported: 31 ppb
Reported range: ND-31
Typical source, per the report: Byproduct of drinking water chlorination; industrial processes
UNREGULATED CONTAMINANTS · report p. 12 · official report
Lithium
The utility reported: 34 ppb
Reported range: 27-41
Typical source, per the report: Naturally-occurring; industrial waste discharge processes
UNREGULATED CONTAMINANTS · report p. 12 · official report
N-Nitrosodimethylamine (NDMA)
The utility reported: 2.1 ppt
Reported range: ND-2.1
Typical source, per the report: Byproducts of drinking water chloramination; industrial processes
UNREGULATED CONTAMINANTS · report p. 12 · official report
Lithium (Distribution System)
The utility reported: 19 ppb
Reported range: ND-47
Typical source, per the report: Naturally-occurring; used in electrochemical cells, batteries, and organic syntheses and pharmaceuticals
UNREGULATED DRINKING WATER CONSTITUENTS · report p. 15 · official report
The Three C's — 3 of 3
Corrosion
What conditions could influence pipes, fixtures, and a water heater?
Los Angeles Department of Water and Power (LADWP)
Alkalinity, Total
The utility reported: 98-110 mg/L as CaCO3
Table III · report p. 25 · official report
Gross Alpha Particle Activity
The utility reported: 5 pCi/L
Reported range: <3-5
Typical source, per the report: Naturally present in the environment
Table I · report p. 22 · official report
Chloride
The utility reported: 92 mg/L
Reported range: 24-99
Typical source, per the report: Runoff / leaching from natural deposits; seawater influence
Table II · report p. 24 · official report
Copper
The utility reported: <50 µg/L
Reported range: <50
Typical source, per the report: Internal corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives
Table II · report p. 24 · official report
Sulfate (as SO4)
The utility reported: 182 mg/L
Reported range: 24-218
Typical source, per the report: Runoff / leaching from natural deposits
Table II · report p. 24 · official report
Alkalinity, Total (as CaCO3)
The utility reported: 110 mg/L
Reported range: 86-124
Typical source, per the report: Erosion of natural deposits
Table III · report p. 25 · official report
Bicarbonate Alkalinity (as HCO3)
The utility reported: 128 mg/L
Reported range: 105-139
Typical source, per the report: Naturally-occurring dissolved gas; erosion of natural deposits
Table III · report p. 25 · official report
pH
The utility reported: 8.3 Unit
Reported range: 7.0-8.7
Typical source, per the report: Naturally-occurring dissolved gas and minerals
Table III · report p. 25 · official report
Phosphate, Ortho (as PO4)
The utility reported: 0.03 mg/L
Reported range: <0.03-0.06
Typical source, per the report: Erosion of natural deposits
Table III · report p. 25 · official report
City of Beverly Hills
Alkalinity, Total (as CaCO3)
The utility reported: 211 ppm
OTHER PARAMETERS · report p. 12 · official report
Chloride
The utility reported: 92 ppm
SECONDARY STANDARDS—Aesthetic Standards · report p. 12 · official report
Sulfate
The utility reported: 176 ppm
SECONDARY STANDARDS—Aesthetic Standards · report p. 12 · official report
Lead
The utility reported: 0.72 ppb
LEAD AND COPPER RESULTS AT RESIDENTIAL TAP · report p. 16 · official report
Copper
The utility reported: 240 ppb
LEAD AND COPPER RESULTS AT RESIDENTIAL TAP · report p. 16 · official report
Gross Alpha Particle Activity
The utility reported: 0.3 pCi/L
Reported range: ND-0.9
Typical source, per the report: Runoff/leaching from natural deposits
PRIMARY STANDARDS—Mandatory Health-Related Standards · report p. 11 · 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 — Los Angeles Department of Water and Power (LADWP)
2025 Drinking Water Quality Report · data year 2024 · 2024 data retained; monitor for the next official update
View the 2024 Los Angeles Department of Water and Power (LADWP) Consumer Confidence ReportSource water, per the report: Los Angeles Aqueduct (44%), Purchased imported water from the Metropolitan Water District of Southern California (MWD) (52%), Local groundwater (1%), Recycled water (3%).
Official report — City of Beverly Hills
2025 Water Quality Report · data year 2025 · Current 2025 monitoring cycle
View the 2025 City of Beverly Hills Consumer Confidence ReportSource water, per the report: In 2025, Beverly Hills sourced its drinking water from two main supplies: locally treated groundwater and imported surface water purchased from the Metropolitan Water District of Southern California (Metropolitan). The City currently operates seven groundwater wells across two basins: the Hollywood Basin and the Central Basin. The remainder of the City’s water comes from Metropolitan, which delivers imported surface water from two major sources: the State Water Project and the Colorado River.
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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