LAST AND NEXT SAMPLE REPORT

Date:01-20-2026	STATE OF CALIFORNIA
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1910003	SYSTEM NAME:CITY OF ARCADIA	COUNTY:LOS ANGELES
SOURCE NO.:037	SOURCE NAME:CHAPMAN WELL 07 - STANDBY	SOURCE CLASS:SB05	STATUS:A

PS Codes	Group Name	Analyte Number	Analyte Name	Results			Unit	MCL	DLR	Last Sampled	Frequency	Next Due	Notes
PS Codes	Group Name	Analyte Number	Analyte Name	Detected Level	Less Than	RL	Unit	MCL	DLR	Last Sampled	Frequency	Next Due	Notes
CA1910003_037_037	SECONDARY/GP	1928	ALKALINITY, BICARBONATE	180.000			MG/L			10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1919	CALCIUM	55.100			MG/L			10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1929	ALKALINITY, CARBONATE		<		MG/L			10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1017	CHLORIDE	31.000			MG/L	500		10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1905	COLOR		<		UNITS	15		10-23-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1022	COPPER, FREE		<	50.000	UG/L	1000	50	10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	2905	FOAMING AGENTS (SURFACTANTS)		<		MG/L	.5		10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1915	HARDNESS, TOTAL (AS CACO3)	179.000			MG/L			10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1021	HYDROXIDE AS CALCIUM CARBONATE		<		MG/L			10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1028	IRON		<	100.000	UG/L	300		10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1031	MAGNESIUM	10.000			MG/L			10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1032	MANGANESE		<	20.000	UG/L	50		10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1920	ODOR	1.000		1.000	TON	3		10-23-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1925	PH	7.680			pH			10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1050	SILVER		<	10.000	UG/L	100		10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1052	SODIUM	37.000			MG/L			10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1064	CONDUCTIVITY @ 25 C UMHOS/CM	530.000			UMHO/CM	1600		10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1055	SULFATE	63.000		0.500	MG/L	500		10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1930	TDS	350.000			MG/L	1000		10-15-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	0100	TURBIDITY		<	0.100	NTU	5		10-23-2018	108	2027/10
CA1910003_037_037	SECONDARY/GP	1095	ZINC		<	50.000	UG/L	5000		10-15-2018	108	2027/10
CA1910003_037_037	INORGANIC	1002	ALUMINUM		<	50.000	UG/L	1000	50	10-15-2018	108	2027/10
CA1910003_037_037	INORGANIC	1074	ANTIMONY, TOTAL		<	6.000	UG/L	6	6	10-15-2018	108	2027/10
CA1910003_037_037	INORGANIC	1005	ARSENIC		<	2.000	UG/L	10	2	10-15-2018	108	2027/10
CA1910003_037_037	INORGANIC	1010	BARIUM		<	100.000	UG/L	1000	100	10-15-2018	108	2027/10
CA1910003_037_037	INORGANIC	1075	BERYLLIUM, TOTAL		<	1.000	UG/L	4	1	10-15-2018	108	2027/10
CA1910003_037_037	INORGANIC	1015	CADMIUM		<	1.000	UG/L	5	1	10-15-2018	108	2027/10
CA1910003_037_037	INORGANIC	1020	CHROMIUM	11.000		10.000	UG/L	50	10	10-15-2018	108	2027/10
CA1910003_037_037	INORGANIC	1080	CHROMIUM, HEX	7.900		0.020	UG/L	10	.1	04-15-2025	12	2026/04
CA1910003_037_037	INORGANIC	1024	CYANIDE		<	100.000	UG/L	150	100	10-15-2018	108	2027/10
CA1910003_037_037	INORGANIC	1025	FLUORIDE	0.900		0.100	MG/L	2	.1	10-15-2018	108	2027/10
CA1910003_037_037	INORGANIC	1035	MERCURY		<	1.000	UG/L	2	1	10-15-2018	108	2027/10
CA1910003_037_037	INORGANIC	1036	NICKEL		<	10.000	UG/L	100	10	10-15-2018	108	2027/10
CA1910003_037_037	INORGANIC	1039	PERCHLORATE	3.000		1.000	UG/L	6	1	02-03-2025	108	2034/02
CA1910003_037_037	INORGANIC	1045	SELENIUM		<	5.000	UG/L	50	5	10-15-2018	108	2027/10
CA1910003_037_037	INORGANIC	1085	THALLIUM, TOTAL		<	1.000	UG/L	2	1	10-15-2018	108	2027/10
CA1910003_037_037	NITRATE/NITRITE	1040	NITRATE	6.400		0.400	MG/L	10	.4	02-03-2025	12	2026/02
CA1910003_037_037	NITRATE/NITRITE	1041	NITRITE		<	0.400	MG/L	1	.4	10-15-2018	12	2019/10	DUE NOW
CA1910003_037_037	RADIOLOGICAL	4109	GROSS ALPHA PARTICLE ACTIVITY	4.420 +/- 0.269		3.000	PCI/L	15	3	07-13-2022	108	2031/07
CA1910003_037_037	RADIOLOGICAL	4020	RADIUM-226	0.780 +/- 0.509		0.235	PCI/L		1	07-13-2022	108	2031/07
CA1910003_037_037	RADIOLOGICAL	4030	RADIUM-228		<	0.564	PCI/L		1	07-13-2022	108	2031/07
CA1910003_037_037	RADIOLOGICAL	4006	COMBINED URANIUM	6.000 +/- 0.000		1.000	PCI/L	20	1	03-13-2018	72	2024/03	DUE NOW
CA1910003_037_037	REGULATED VOC	2981	1,1,1-TRICHLOROETHANE		<	0.500	UG/L	200	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2988	1,1,2,2-TETRACHLOROETHANE		<	0.500	UG/L	1	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2985	1,1,2-TRICHLOROETHANE		<	0.500	UG/L	5	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2978	1,1-DICHLOROETHANE		<	0.500	UG/L	5	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2977	1,1-DICHLOROETHYLENE		<	0.500	UG/L	6	.5	04-01-2019	108	2028/04
CA1910003_037_037	REGULATED VOC	2378	1,2,4-TRICHLOROBENZENE		<	0.500	UG/L	5	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2968	O-DICHLOROBENZENE		<	0.500	UG/L	600	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2980	1,2-DICHLOROETHANE		<	0.500	UG/L	.5	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2983	1,2-DICHLOROPROPANE		<	0.500	UG/L	5	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2413	1,3-DICHLOROPROPENE		<	0.500	UG/L	.5	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2969	P-DICHLOROBENZENE		<	0.500	UG/L	5	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2990	BENZENE		<	0.500	UG/L	1	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2982	CARBON TETRACHLORIDE		<	0.500	UG/L	.5	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2380	CIS-1,2-DICHLOROETHYLENE		<	0.500	UG/L	6	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2964	DICHLOROMETHANE		<	0.500	UG/L	5	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2992	ETHYLBENZENE		<	0.500	UG/L	300	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2251	METHYL TERT-BUTYL ETHER		<	3.000	UG/L	13	3	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2989	CHLOROBENZENE		<	0.500	UG/L	70	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2996	STYRENE		<	0.500	UG/L	100	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2987	TETRACHLOROETHYLENE	0.670		0.500	UG/L	5	.5	04-01-2019	108	2028/04
CA1910003_037_037	REGULATED VOC	2991	TOLUENE		<	0.500	UG/L	150	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2979	TRANS-1,2-DICHLOROETHYLENE		<	0.500	UG/L	10	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2984	TRICHLOROETHYLENE		<	0.500	UG/L	5	.5	04-01-2019	108	2028/04
CA1910003_037_037	REGULATED VOC	2218	TRICHLOROFLUOROMETHANE		<	5.000	UG/L	150	5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2904	TRICHLOROTRIFLUOROETHANE		<	10.000	UG/L	1200	10	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2976	VINYL CHLORIDE		<	0.500	UG/L	.5	.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED VOC	2955	XYLENES, TOTAL		<	0.500	UG/L	1750	0.5	10-15-2018	108	2027/10
CA1910003_037_037	REGULATED SOC	2414	1,2,3-TRICHLOROPROPANE		<	0.005	UG/L	0.005	0.005	04-15-2025	12	2026/04
CA1910003_037_037	REGULATED SOC	2063	2,3,7,8-TCDD		<	0.005	NG/L	0.03	0.005	03-13-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2110	2,4,5-TP		<	1.000	UG/L	50	1	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2105	2,4-D		<	10.000	UG/L	70	10	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2051	LASSO (ALACHLOR)		<	1.000	UG/L	2	1	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2050	ATRAZINE		<	0.500	UG/L	1	.5	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2625	BENTAZON		<	2.000	UG/L	18	2	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2306	BENZO(A)PYRENE		<	0.100	UG/L	.2	.1	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2046	CARBOFURAN		<	5.000	UG/L	18	5	07-16-2018	108	2027/07
CA1910003_037_037	REGULATED SOC	2959	CHLORDANE		<	0.100	UG/L	.1	.1	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2031	DALAPON		<	10.000	UG/L	200	10	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2035	DI(2-ETHYLHEXYL) ADIPATE		<	5.000	UG/L	400	5	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2039	DI(2-ETHYLHEXYL) PHTHALATE		<	3.000	UG/L	4	3	04-09-2018	108	2027/04
CA1910003_037_037	REGULATED SOC	2931	1,2-DIBROMO-3-CHLOROPROPANE		<		UG/L	.2	.01	03-13-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2041	DINOSEB		<	2.000	UG/L	7	2	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2032	DIQUAT		<	4.000	UG/L	20	4	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2033	ENDOTHALL		<	45.000	UG/L	100	45	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2005	ENDRIN		<	0.100	UG/L	2	.1	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2946	ETHYLENE DIBROMIDE		<		UG/L	.05	.02	03-13-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2034	GLYPHOSATE		<	25.000	UG/L	700	25	03-13-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2065	HEPTACHLOR		<		UG/L	.01	.01	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2067	HEPTACHLOR EPOXIDE		<		UG/L	.01	.01	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2274	HEXACHLOROBENZENE		<	0.500	UG/L	1	.5	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2042	HEXACHLOROCYCLOPENTADIENE		<	1.000	UG/L	50	1	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2010	BHC-GAMMA		<	0.200	UG/L	.2	.2	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2015	METHOXYCHLOR		<	10.000	UG/L	30	10	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2626	MOLINATE		<	2.000	UG/L	20	2	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2036	OXAMYL		<	20.000	UG/L	50	20	07-16-2018	108	2027/07
CA1910003_037_037	REGULATED SOC	2326	PENTACHLOROPHENOL		<	0.200	UG/L	1	.2	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2040	PICLORAM		<	1.000	UG/L	500	1	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2383	TOTAL POLYCHLORINATED BIPHENYLS (PCB)		<	0.500	UG/L	.5	.5	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2037	SIMAZINE		<	1.000	UG/L	4	1	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2727	THIOBENCARB (BOLERO)		<	1.000	UG/L	70	1	03-07-2018	108	2027/03
CA1910003_037_037	REGULATED SOC	2020	TOXAPHENE		<	1.000	UG/L	3	1	03-07-2018	108	2027/03
PS Codes	Group Name	Analyte Number	Analyte Name	Detected Level	Less Than	RL	Unit	MCL	DLR	Last Sampled	Frequency	Next Due	Notes

RL – Reporting Level means the level to which the laboratory reported the presence of an analyte. For radionuclides, Reporting Level is the MDA95.

DLR – Detection Limit for purposes of Reporting (DLR) means the designated minimum level at or above which any analytical finding of a contaminant in drinking water resulting from monitoring required under Chapter 15 of Title 22 shall be reported to the State Board (California Code of Regulations Section § 64400.34)

For addtional definitions, please refer to our data dictionary.