Just tap water is safe to eat

Gunsan k-water quality test results

( February, 2019 )

Yongdam process water purification treatment process through the scientific safe and clean water

Water Source

【 Youngdam Front view 】

Water Treatment Process

intake Water  Place

Disinfection Place

Disinfection Place

Filtration Place

Sedimentation Place

Water supply

Home

Aggregation Place

Start Place

Mixed Place

Water treatment plant and reservoir inflow

K-water produces a monthly water quality test results in water suitable for drinking     water as the water is received is determined

○ Water sampling date : February 7, 2019

○ Test period :  February 7, 2019  ~  February 25, 2019

No.	Test items	water standards	Test results		No.	Test items	water standards	Test results
			Water Plant	Gunsan water				Water Plant	Gunsan water
1	Bacteria	100CFU/㎖Less	None	None	31	1,2dibromo-3-chloropropane	0.003㎎/ℓLess	None	None
2	Total Coliforms	ND/100㎖	None	None	32	1,4-dioxane	0.05㎎/ℓLess	None	None
3	E.coli	ND/100㎖	None	None	33	Residual chlorine	4.0㎎/ℓLess	0.77	0.47
4	Pb	0.01㎎/ℓLess	None	None	34	Trihalomethanes	0.1㎎/ℓLess	0.033	0.029
5	F	1.5㎎/ℓLess	None	None	35	chloroform	0.08㎎/ℓLess	0.027	0.023
6	As	0.01㎎/ℓLess	None	None	36	bromodichloromethane	0.03㎎/ℓLess	0.005	0.005
7	Se	0.01㎎/ℓLess	None	None	37	dibromochloromethane	0.1㎎/ℓLess	None	None
8	Hg	0.001㎎/ℓLess	None	None	38	chloralhydrate	0.03㎎/ℓLess	0.0013	0.0017
9	CN	0.01㎎/ℓLess	None	None	39	Dibromoacetonitrile	0.1㎎/ℓLess	None	None
10	Cr	0.05㎎/ℓLess	None	None	40	Dichloroacetonitrile	0.09㎎/ℓLess	0.0013	0.0021
11	NH3-N	0.5㎎/ℓLess	None	None	41	Trichloroacetonitrile	0.004㎎/ℓLess	None	None
12	NO3-N	10㎎/ℓLess	1.4	1.4	42	Haloaceticacid	0.1㎎/ℓLess	0.016	0.031
13	Cd	0.005㎎/ℓLess	None	None	43	Formaldehyde	0.5㎎/ℓLess	None	None
14	B	1.0㎎/ℓLess	None	None	44	Hardness	300㎎/ℓLess	40	33
15	Bromate	0.01㎎/ℓLess	None	None	45	Donsumption of ptas sium permanganate	10㎎/ℓLess	2.9	3.1
16	Phenol	0.005㎎/ℓLess	None	None	46	Smell	only the raw smell of disinfection	None	None
17	Diazinon	0.02㎎/ℓLess	None	None	47	Taste	only the raw taste of disinfection	None	None
18	Parathion	0.06㎎/ℓLess	None	None	48	Cu	1㎎/ℓLess	None	None
19	Fenitrothion	0.04㎎/ℓLess	None	None	49	Color	5 Less	None	None
20	Carbaryl	0.07㎎/ℓLess	None	None	50	ABS	0.5㎎/ℓLess	None	None
21	1.1.1-Trichloroethane	0.1㎎/ℓLess	None	None	51	PH	5.8 ~ 8.5	7.3	7.1
22	Tertachloroethylene	0.01㎎/ℓLess	None	None	52	Zn	3㎎/ℓLess	None	None
23	Trichloroethylene	0.03㎎/ℓLess	None	None	53	Cl-	250㎎/ℓLess	12.8	12.3
24	Dichloromethane	0.02㎎/ℓLess	None	None	54	Residue on evaporation	500㎎/ℓLess	81	75
25	Benzene	0.01㎎/ℓLess	None	None	55	Fe	0.3㎎/ℓLess	None	None
26	Toluene	0.7㎎/ℓLess	None	None	56	Mn	0.05㎎/ℓLess	None	None
27	Ethylbenzene	0.3㎎/ℓLess	None	None	57	Turbidity	0.5NTULess	0.04	0.06
28	Xylene	0.5㎎/ℓLess	None	None	58	SO42-	200㎎/ℓLess	7	7
29	1.1-Dichloroethylene	0.03㎎/ℓLess	None	None	59	Al	0.2㎎/ℓLess	None	None
30	Tetrchlorocarbon	0.002㎎/ℓLess	None	None	Test results			Suitable	Suitable
Test results			Suitable	Suitable

K-water courses by reservoir

Regional water quality test results for 16 sites suitable for drinking

○ Water sampling date : February 7, 2019 ~ February 8, 2019

○ Test period : February 7, 2019 ~ February 14, 2019

▶ Naun reservoir

Division	P H (5.8~3.5)	Residual chlorine (4.0mg/ℓLess)	Turbidity (0.5NTU Less)	Bacteria (100CFU/mℓLess)	Total Coliforms (NE/100mℓ)	E.coli (ND/100mℓ Less)	NH3-N (0.5mg/ℓ Less)	Fe (0.3mg/ℓ Less)	Cu (1mg/ℓ Less)	Zn (3mg/ℓ Less)	Trihalomethanes(0.1mg/ℓLess)
Average	6.9	0.23	0.05	0	None	None	0	0	0	0.014	0.061
Max	7.1	0.32	0.08	0	None	None	0	0	0	0.056	0.070

▶ Kunbong reservoir

Division	P H (5.8~3.5)	Residual chlorine (4.0mg/ℓLess)	Turbidity (0.5NTU Less)	Bacteria (100CFU/mℓ Less)	Total Coliforms (NE/100mℓ)	E.coli (ND/100mℓ Less)	NH3-N (0.5mg/ℓ Less)	Fe (0.3mg/ℓ Less)	Cu (1mg/ℓ Less)	Zn (3mg/ℓ Less)	Trihalomethanes(0.1mg/ℓLess)
Average	7.0	0.24	0.08	0	None	None	0	0	0	0	0.084
Max	7.0	0.34	0.09	0	None	None	0	0	0	0	0.091

▶ Daeya reservoir

Division	P H (5.8~3.5)	Residual chlorine (4.0mg/ℓLess)	Turbidity (0.5NTU Less)	Bacteria (100CFU/mℓLess)	Total Coliforms (NE/100mℓ)	E.coli (ND/100mℓ Less)	NH3-N (0.5mg/ℓ Less)	Fe (0.3mg/ℓLess)	Cu (1mg/ℓLess)	Zn (3mg/ℓLess)	Trihalomethanes(0.1mg/ℓLess)
Average	7.0	0.29	0.08	0	None	None	0	0	0	0.001	0.081
Max	7.0	0.30	0.09	0	None	None	0	0	0	0.004	0.083

▶ Ohsikdo reservoir

Division	P H (5.8~3.5)	Residual chlorine (4.0mg/ℓLess)	Turbidity (0.5NTU Less)	Bacteria (100CFU/mℓ Less)	Total Coliforms (NE/100mℓ)	E.coli (ND/100mℓ Less)	NH3-N (0.5mg/ℓ Less)	Fe (0.3mg/ℓLess)	Cu (1mg/ℓ Less)	Zn (3mg/ℓ Less)	Trihalomethanes(0.1mg/ℓ Less)
Average	6.9	0.31	0.08	0	None	None	0	0	0	0.004	0.070
Max	6.9	0.40	0.09	0	None	None	0	0	0	0.014	0.073

Plumbing Faucet

Every month 41 locations in tap water safety test results

○ Water sampling test : February 12, 2019 ~ February 14, 2019

○ Test period : February 12, 2019 ~ February 20, 2019

▶ Faucet

Bacteria (100CFU/㎖Less)		Totalcoliforms (ND/100㎖)		E.coli (ND/100㎖)		Residual chlorine (4.0mg/ℓLESS)
Average	Max	Average	Ma7	Average	Max	Average	Max
0	0	None	None	None	None	0.22	0.30

▶ After passing through a water tank faucet

Bacteria (100CFU/㎖Less)		Totalcoliforms (ND/100㎖)		E.coli (ND/100㎖)		Residual chlorine (4.0mg/ℓLESS)
Average	Max	Average	Max	Average	Max	Average	Max
0	0	None	None	None	None	0.19	0.28

▶ The end of the faucet

구 분	Bacteria (100CFU/mℓLess)	Totalcoliforms (ND/100mL)	E.coli (ND/100mL)	Residual chlorine (4.0 mg/ℓLess)	Fe (0.3 mg/ℓLess)	Cu (1 mg/ℓLess)	Zn (3 mg/ℓLess)	Mn (0.3 mg/ℓLess)	NH3-N (0.5 mg/ℓLess)	Cl- (250mg/ℓLess)
Average value	0	None	None	0.25	None	None	0.001	0	0	10.6
Maximum value	0	None	None	0.25	None	None	0.002	0	0	11.0

Contact water quality

♣ Counter complaints : Gunsan city water service section

♣ Complaints Phone : No area code 120times

☎ Adminstration 454-5352 Charge 454-5362

Water Mangement 454-5382 Water sector 454-5392, 5402, 5422

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