Just tap water is safe to eat

Gunsan k-water quality test results

( December, 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 : December 3, 2019

○ Test period : December 4, 2019 ~ December 23, 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	0	0	31	1,2dibromo-3-chloropropane	0.003㎎/ℓLess	ND	ND
2	Total Coliforms	ND/100㎖	ND	ND	32	1,4-dioxane	0.05㎎/ℓLess	ND	ND
3	E.coli	ND/100㎖	ND	ND	33	Residual chlorine	4.0㎎/ℓLess	0.84	0.47
4	Pb	0.01㎎/ℓLess	ND	ND	34	Trihalomethanes	0.1㎎/ℓLess	0.019	0.025
5	F	1.5㎎/ℓLess	ND	ND	35	chloroform	0.08㎎/ℓLess	0.016	0.021
6	As	0.01㎎/ℓLess	ND	ND	36	bromodichloromethane	0.03㎎/ℓLess	0.003	0.004
7	Se	0.01㎎/ℓLess	ND	ND	37	dibromochloromethane	0.1㎎/ℓLess	ND	ND
8	Hg	0.001㎎/ℓLess	ND	ND	38	chloralhydrate	0.03㎎/ℓLess	0.0013	0.0028
9	CN	0.01㎎/ℓLess	ND	ND	39	Dibromoacetonitrile	0.1㎎/ℓLess	ND	ND
10	Cr	0.05㎎/ℓLess	ND	ND	40	Dichloroacetonitrile	0.09㎎/ℓLess	0.0009	0.0014
11	NH3-N	0.5㎎/ℓLess	ND	ND	41	Trichloroacetonitrile	0.004㎎/ℓLess	ND	ND
12	NO3-N	10㎎/ℓLess	1.0	1.0	42	Haloaceticacid	0.1㎎/ℓLess	0.033	0.03
13	Cd	0.005㎎/ℓLess	ND	ND	43	Formaldehyde	0.5㎎/ℓLess	ND	ND
14	B	1.0㎎/ℓLess	ND	ND	44	Hardness	300㎎/ℓLess	35	34
15	Bromate	0.01㎎/ℓLess	ND	ND	45	Donsumption of ptas sium permanganate	10㎎/ℓLess	3.1	2.8
16	Phenol	0.005㎎/ℓLess	ND	ND	46	Smell조겨	only the raw smell of disinfection	None	None
17	Diazinon	0.02㎎/ℓLess	ND	ND	47	Taste	only the raw taste of disinfection	None	None
18	Parathion	0.06㎎/ℓLess	ND	ND	48	Cu	1㎎/ℓLess	ND	ND
19	Fenitrothion	0.04㎎/ℓLess	ND	ND	49	Color	5 Less	ND	ND
20	Carbaryl	0.07㎎/ℓLess	ND	ND	50	ABS	0.5㎎/ℓLess	ND	ND
21	1.1.1-Trichloroethane	0.1㎎/ℓLess	ND	ND	51	PH	5.8 ~ 8.5	7.0	7.0
22	Tertachloroethylene	0.01㎎/ℓLess	ND	ND	52	Zn	3㎎/ℓLess	ND	ND
23	Trichloroethylene	0.03㎎/ℓLess	ND	ND	53	Cl-	250㎎/ℓLess	12	12.6
24	Dichloromethane	0.02㎎/ℓLess	ND	ND	54	Residue on evaporation	500㎎/ℓLess	60	70
25	Benzene	0.01㎎/ℓLess	ND	ND	55	Fe	0.3㎎/ℓLess	ND	ND
26	Toluene	0.7㎎/ℓLess	ND	ND	56	Mn	0.05㎎/ℓLess	ND	ND
27	Ethylbenzene	0.3㎎/ℓLess	ND	ND	57	Turbidity	0.5NTULess	0.05	0.05
28	Xylene	0.5㎎/ℓLess	ND	ND	58	SO42-	200㎎/ℓLess	6	6
29	1.1-Dichloroethylene	0.03㎎/ℓLess	ND	ND	59	Al	0.2㎎/ℓLess	ND	ND
30	Tetrchlorocarbon	0.002㎎/ℓLess	ND	ND	Test results			Suitable	Suitable
Test results			Suitable	Suitable

Every month 41 locations in tap water safety test results

○ Water sampling test : December 2, 2019 ~ December 4, 2019

○ Test period : December 2, 2019 ~ December 11, 2019

▶ 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	ND	ND	ND	ND	0.23	0.31

▶ 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	ND	ND	ND	ND	0.21	0.27

▶ 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 (0.305mg/ℓLess)	NH3-N (0.5 mg/ℓLess)	Cl- (250mg/ℓLess)
Average value	0	ND	ND	0.23	ND	ND	0.005	ND	ND	9.8
Maximum value	0	ND	ND	0.30	ND	ND	0.014	ND	ND	9.9

Small Water Supply

○ Facilities : 5 facilities (each on Gwanli Island, Bangchuk Island, Eocheong Island, Yeon Island, Gaeya Island)

○ Water sampling period : November 22 – December 24, 2019

○ Test period : November 22 – December 24, 2019

○ Test items  : 60 items for filtered water

○ Test result : Suitable

Small Water Supply Facilities

○ Facilities : 3 facilities (each on Myeong Island, Mal Island, Duri Island)

○ Water sampling period : November 22 – December 24, 2019

○ Test period : November 22 – December 24, 2019

○ Test items  : 14 items  for filtered water

○ Test result : Suitable

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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