Table 1. Groundwater and surface-water sites in the Johnson Creek basin, Oregon.

[Map No.: refers to the number on plate 1. USGS site No.: a unique 8 or 15 digit identification number. Additional information on groundwater and surface-water sites are available from the USGS National Water Information System (NWIS) online at http://waterdata.usgs.gov/or/nwis using the USGS site number. OWRD well No.: Oregon Water Resources Department well number. Well reports (logs) documenting the well installation with information describing the well location, type of subsurface materials encountered, well depth, construction, and the depth to water are available online at http://www.wrd.state.or.us using the OWRD well number. Site name and location: All sites in Portland, Oregon, except as noted (name and approximate location). UTM Easting: The X-coordinate used to identify the position of a feature based on the distance, in meters, east or west from the central meridian of the UTM zone (UTM zone 10; NAD 1927). UTM Northing: The Y-coordinate used to identify the position of a feature based on the distance, in meters, north of the equator (NAD 1927). Land-surface elevation: The elevation of the land-surface in feet above NGVD (1929) as determined from a digital elevation model (d) or from a topographic map (m). Elevation may differ from previously published values due to new method of determination. Open interval: In a well, the screened part through which water enters. If open interval not known, used depth of well (e). Data type (a): PL, periodic water-level measurement; CL, continuous groundwater level recorder; PQ, periodic streamflow measurement; CQ, continuous stream level and streamflow recorder; CT, continuous stream temperature recorder; RT, real-time telemetry. Abbreviations: UTM, Universal Transverse Mercator; ft, foot; m, meter; –, not available]

Map No.	USGS site No./ OWRD well No.	Site name and location	UTM (m)		Land-surface elevation (ft)	Open interval depth below land surface (ft)		Data type (a)
			Easting	Northing		From	To
Groundwater sites
1	452841122295401/MULT 2876	159th Ave. and Martins St.	539194	5035974	244 (d)	125	135	PL
2	453056122295801/MULT 2838	160th Ave. and Taylor St.	539075	5040204	247 (d)	77	85	PL
3	452840122302201/–	150th Ave. and Foster Rd.	538556	5035928	238 (d)	51	54	PL
4	452840122302202/–	150th Ave. and Foster Rd.	538555	5035929	238 (d)	14	17	PL
5	452916122305801/MULT 4693	141st Ave. and Holgate Blvd.	537811	5037029	398 (d)	277	277	PL
6	452842122305801/MULT 195	134th Ave. and SE Foster Rd.	537801	5036001	243 (d)	38	38	PL
7	452854122305901/MULT 2886	141st Ave. and Ellis St.	537795	5036366	276 (d)	–	110 (e)	PL
8	452859122311001/MULT 4596	139th Ave. and Ellis St.	537557	5036501	271 (d)	79	79	PL
9	452912122312801/MULT 2881	133rd Ave. and Raymond St.	537147	5036903	229 (d)	50	58	CL, RT
10	452919122313702/MULT 60838	132nd Ave. and Long St.	536972	5037132	191 (d)	12	23	PL
11	452919122313601/–	132nd Ave. and Long St. (piezometer)	536990	5037130	183 (d)	11	9	PL
12	452858122322801/MULT 52202	117th Ave. and Harold St.	535856	5036481	202 (d)	48	65	PL
13	452824122325401/MULT 4279	110th Ave. and Foster Rd.	535311	5035412	214 (d)	96	126	PL
14	452841122330001/–	Beggars Tick Marsh Park, 111th Ave. and Foster Rd.	535166	5035926	207 (d)	–	6 (e)	PL
15	452912122340401/MULT 50871	Lents Park (deep), 92nd Ave. and Raymond St., lower open interval	533778	5036902	251 (d)	407	437	PL
		upper open interval				377	397
16	452921122340401/MULT 63388	Lents Park (shallow), 92nd Ave. and Pardee St.	533774	5037152	261 (d)	107	127	PL
17	452851122350801/MULT 63293	Mount Scott Park, 74th Ave. and Knight St.	532381	5036246	233 (d)	102	122	PL
18	452725122354301/CLAC 347	64th Ave. and Johnson Creek Blvd.,Milwaukie	531607	5033575	149 (d)	130	143	PL
19	452825122355501/MULT 63294	Brentwood Park, 62nd Ave. and Cooper St.	531376	5035423	255 (d)	134	154	CL
20	452859122364701/MULT 63237	Woodstock Park, 47th Ave. and Harold St.	530244	5036480	238 (d)	147	167	CL
21	452822122372001/MULT 63234	Berkeley Park, 39th Ave. and Bybee Blvd.	529538	5035326	194 (d)	102	122	CL
22	452909122375001/MULT 2784	32nd Ave. and Steele St.	528867	5036780	137 (d)	77	77	PL
23	452827122382401/MULT 63238	Westmoreland Park (shallow), 23rd Ave. and Bybee Blvd.	528141	5035465	52 (d)	20	25	CL
24	452827122382402/MULT 63239	Westmoreland Park (deep), 23rd Ave. and Bybee Blvd.	528139	5035462	52 (d)	76	96	CL
Surface-water sites
25	452823122240900	Johnson Creek at Palmblad Rd. near Gresham	546724	5035448	360 (m)	–	–	PQ
26	14211400	Johnson Creek at Regner Rd. at Gresham	545282	5036930	305 (m)	–	–	CQ, CT, RT
27	452944122260000	Johnson Creek at Walters Rd. at Gresham	544276	5037910	290 (m)	–	–	PQ
28	452917122275700	Johnson Creek at 190th Ave. at Gresham	541707	5037098	260 (m)	–	–	PQ
29	14211499	Kelley Creek at 159th Dr.	539321	5035863	245 (m)	–	–	CQ, CT, RT
30	14211500	Johnson Creek at Sycamore	538559	5035928	228 (m)	–	–	CQ, CT, RT
31	452835122324200	Johnson Creek at Brookside Park	535585	5035749	220 (m)	–	–	PQ
32	452747122344000	Johnson Creek at 82nd Ave.	533012	5034327	190 (m)	–	–	PQ
33	452743122365400	Johnson Creek at 45th Ave.	530068	5034124	80 (m)	–	–	PQ
34	452749122370000	Errol Spring Creek at mouth	529965	5034331	80 (m)	–	–	PQ
35	452750122365300	Storm Drain adjacent to Errol Spring Creek	529963	5034356	80 (m)	–	–	PQ
36	452754122374800	Johnson Creek at Berkeley Pl.	528990	5034455	70 (m)	–	–	PQ
37	452740122382700	Johnson Creek at Sherrett St.	528104	5034023	40 (m)	–	–	PQ
38	452856122380000	Crystal Springs Creek at Reed College	528656	5036369	70 (m)	–	–	PQ
39	14211542	Crystal Springs Creek at Bybee Blvd.	528074	5035472	50 (m)	–	–	CT, PQ
40	14211546	Crystal Springs Creek at mouth	528016	5033990	40 (m)	–	–	CT, PQ
41	14211550	Johnson Creek at Milwaukie	527998	5033126	30 (m)	–	–	CQ, CT, RT
42	14211559	Johnson Creek at mouth at Milwaukie	527966	5032226	20 (m)	–	–	PQ
43	452919122313701	Holgate Lake	537000	5037130	190 (d)	–	–	CL, PL
44	14211720	Willamette River	526050	5040330	2 (m)	–	–	CQ, RT
45	14141500	Little Sandy River near Bull Run	564920	5029220	720 (m)	–	–	CQ, RT