What's in Suburban Water Systems-glendora — Covina, Ca, CA tap water

29 contaminants were measured in the Suburban Water Systems-glendora — Covina, Ca, CA water system's 2021 annual report. Each is shown below against its federal limit.

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Reporting year: 2021
Contaminants measured: 29
Over federal limit: 0
Approaching the limit: 0
Service area: CA
Source: Utility CCR

All within federal limits. Every measured contaminant in this report is below its federal threshold.

Disinfection byproducts

Contaminant	Measured	Federal limit	Status
TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter.	40 ug/LAverageAnnual Average	None set	Within the limit
HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter.	18 ug/LAverageAnnual Average	None set	Within the limit
PerchlorateA chemical used in rocket fuel and fireworks that can also form during disinfection.	Not detected ug/LAverageCovina Irrigating Company	None set	Detected — no federal limit
+By source (2)— City of Glendora Water Department, Covina Irrigating Company City of Glendora Water DepartmentZone avgNot detected ug/Lrange0–2.4 ug/L Covina Irrigating CompanyZone avgNot detected ug/LrangeNot detected ug/L

Metals

Contaminant	Measured	Federal limit	Status
CopperA metal that enters water from corroding household plumbing.	0.56 mg/L90th percentileAt the tap	1.3 mg/LAction level	Within the limit
ArsenicA naturally occurring element that also enters water from industry and agriculture.	3.5 ug/LAverageCovina Irrigating Company	None set	Within the limit
+By source (2)— Covina Irrigating Company, City of Glendora Water Department Covina Irrigating CompanyZone avg3.5 ug/Lrange2.7–5 ug/L50% of limit City of Glendora Water DepartmentZone avgNot detected ug/Lrange0–3.1 ug/L31% of limit
BariumA metal from erosion of natural deposits and industrial discharge.	0.13 mg/LAverageCity of Glendora Water Department	2 mg/LMCL	Within the limit
+By source (2)— City of Glendora Water Department, Covina Irrigating Company City of Glendora Water DepartmentZone avg0.13 mg/Lrange0–0.3 mg/L15% of limit Covina Irrigating CompanyZone avgNot detected mg/LrangeNot detected mg/L0% of limit
LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures.	Not detected ug/L90th percentileAt the tap	None set	None detected
AluminumA common element sometimes used as a treatment coagulant.	44 ug/LAverageCovina Irrigating Company	None set	Detected — no federal limit
+By source (2)— Covina Irrigating Company, City of Glendora Water Department Covina Irrigating CompanyZone avg0.044 ug/Lrange0–0.054 ug/L City of Glendora Water DepartmentZone avgNot detected ug/LrangeNot detected ug/L
BoronA naturally occurring element from rock and soil.	0.143 mg/LAverageCovina Irrigating Company	1 mg/LNL	Detected — no federal limit
+By source (2)— Covina Irrigating Company, City of Glendora Water Department Covina Irrigating CompanyZone avg0.143 mg/Lrange0.078–0.18 mg/L City of Glendora Water DepartmentZone avgNot detected mg/Lrange0–0.13 mg/L
CalciumA naturally occurring mineral that contributes to water hardness.	34 mg/LAverageCovina Irrigating Company	None set	Detected — no federal limit
MagnesiumA naturally occurring mineral that contributes to water hardness.	8 mg/LAverageCovina Irrigating Company	None set	Detected — no federal limit
ManganeseA naturally occurring metal from soil and rock.	Not detected ug/LAverageCity of Glendora Water Department	None set	Detected — no federal limit
+By source (2)— City of Glendora Water Department, Covina Irrigating Company City of Glendora Water DepartmentZone avgNot detected ug/Lrange0–0.86 ug/L Covina Irrigating CompanyZone avgNot detected ug/LrangeNot detected ug/L
PotassiumA naturally occurring mineral from rock and soil.	3 mg/LAverageCovina Irrigating Company	None set	Detected — no federal limit
SodiumA naturally occurring salt component.	45 mg/LAverageCovina Irrigating Company	None set	Detected — no federal limit
+By source (2)— Covina Irrigating Company, City of Glendora Water Department Covina Irrigating CompanyZone avg45 mg/Lrange12–63 mg/L City of Glendora Water DepartmentZone avg32 mg/Lrange23–36 mg/L

Radionuclides

Contaminant	Measured	Federal limit	Status
Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances.	3.3 pCi/LAverageCovina Irrigating Company	15 pCi/LMCL	Within the limit
+By source (2)— City of Glendora Water Department, Covina Irrigating Company City of Glendora Water DepartmentZone avgNot detected pCi/Lrange0–3.7 pCi/L25% of limit Covina Irrigating CompanyZone avg3.3 pCi/Lrange3.3 pCi/L22% of limit
UraniumA naturally occurring radioactive metal from erosion of natural deposits.	2.5 pCi/LAverageCovina Irrigating Company	20 pCi/LMCL	Detected — no federal limit
+By source (2)— Covina Irrigating Company, City of Glendora Water Department Covina Irrigating CompanyZone avg2.5 pCi/Lrange2.5 pCi/L City of Glendora Water DepartmentZone avg0.96 pCi/Lrange0–2.2 pCi/L

Inorganic chemicals

Contaminant	Measured	Federal limit	Status
NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits.	0.73 mg/LAverageCity of Glendora Water Department	10 mg/LMCL	Within the limit
+By source (2)— City of Glendora Water Department, Covina Irrigating Company City of Glendora Water DepartmentZone avg0.73 mg/Lrange0–5.1 mg/L51% of limit Covina Irrigating CompanyZone avg0.48 mg/Lrange0.22–0.7 mg/L7% of limit
FluorideA mineral often added to drinking water to help prevent tooth decay.	0.24 mg/LAverageCity of Glendora Water Department	4 mg/LMCL	Within the limit
+By source (2)— City of Glendora Water Department, Covina Irrigating Company City of Glendora Water DepartmentZone avg0.24 mg/Lrange0.16–0.39 mg/L10% of limit Covina Irrigating CompanyZone avg0.19 mg/Lrange0.14–0.25 mg/L6% of limit
ChlorideA naturally occurring salt compound.	52 mg/LAverageCovina Irrigating Company	None set	Detected — no federal limit
+By source (2)— Covina Irrigating Company, City of Glendora Water Department Covina Irrigating CompanyZone avg52 mg/Lrange11–74 mg/L City of Glendora Water DepartmentZone avg40 mg/Lrange26–61 mg/L
SulfateA naturally occurring mineral from rock and soil.	48 mg/LAverageCovina Irrigating Company	None set	Detected — no federal limit
+By source (2)— City of Glendora Water Department, Covina Irrigating Company City of Glendora Water DepartmentZone avg42 mg/Lrange24–81 mg/L Covina Irrigating CompanyZone avg48 mg/Lrange27–60 mg/L

Microbial

Contaminant	Measured	Federal limit	Status
Total ColiformA group of bacteria used as an indicator of overall water-system sanitation.	0Highest single sampleHighest / Monthly	0MCLG	None detected

Physical & aggregate

Contaminant	Measured	Federal limit	Status
AlkalinityA measure of the water's capacity to neutralize acids.	170 mg/LAverageCity of Glendora Water Department	None set	Detected — no federal limit
+By source (2)— City of Glendora Water Department, Covina Irrigating Company City of Glendora Water DepartmentZone avg170 mg/Lrange130–260 mg/L Covina Irrigating CompanyZone avg117 mg/Lrange82–180 mg/L
HardnessA measure of dissolved calcium and magnesium minerals.	200 mg/LAverageCity of Glendora Water Department	None set	Detected — no federal limit
+By source (2)— City of Glendora Water Department, Covina Irrigating Company City of Glendora Water DepartmentZone avg200 mg/Lrange7.01–21.03 mg/L Covina Irrigating CompanyZone avg118 mg/Lrange87–170 mg/L
OdorA measure of detectable smell in the water.	1AverageCity of Glendora Water Department	None set	Detected — no federal limit
+By source (2)— City of Glendora Water Department, Covina Irrigating Company City of Glendora Water DepartmentZone avg1range1 Covina Irrigating CompanyZone avgNot detectedrangeNot detected
pHA measure of how acidic or basic the water is.	8AverageCovina Irrigating Company	None set	Detected — no federal limit
+By source (2)— Covina Irrigating Company, City of Glendora Water Department Covina Irrigating CompanyZone avg8range7.9–8.2 City of Glendora Water DepartmentZone avg7.5range7.2–7.9
Specific ConductanceA measure of how well water conducts electricity, which tracks dissolved mineral content.	530AverageCity of Glendora Water Department	None set	Detected — no federal limit
+By source (2)— City of Glendora Water Department, Covina Irrigating Company City of Glendora Water DepartmentZone avg530range390–820 Covina Irrigating CompanyZone avg467range390–510
TOCTotal organic carbon — a measure of organic material dissolved in the water.	2.7 mg/LAverageCovina Irrigating Company	None set	Detected — no federal limit
Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts.	340 mg/LAverageCity of Glendora Water Department	None set	Detected — no federal limit
+By source (2)— City of Glendora Water Department, Covina Irrigating Company City of Glendora Water DepartmentZone avg340 mg/Lrange230–530 mg/L Covina Irrigating CompanyZone avg257 mg/Lrange210–300 mg/L
TurbidityA measure of cloudiness from suspended particles in the water.	0.15Reported levelSystem-wide	0.3Treatment technique	Detected — no federal limit

Source: Suburban Water Systems-glendora — Covina, Ca, CA's 2021 Consumer Confidence Report — the annual drinking-water report every U.S. utility is required to publish. The numbers on this page are the utility's own. A water-quality report covers an entire service area, not a single address.

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