Landscape Clinic Final Report

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Appendix B: Method for Finding Water Use of Landscape

The water use for the Harvey Mudd landscape was obtained using data given to us by one of our liaisons, Mike Barber. These data were detailed for each of the possible 30 stations on each of the 18 clocks that control the water delivery system on campus. For each station we were given the gallons of water per minute that spray from the sprinklers, the time the sprinklers were programmed to spray during the summer and winter schedules, and the number of days per week the sprinklers run during each of these schedules. The total water use for the landscape was found by multiplying gallons of water per minute times the minutes the sprinklers sprayed times the number of days the sprinklers ran. Doing this gave us the gallons of water used per week on the landscape during the summer and winter schedules.

To get the water use of the lawns, we looked through detailed maps of the campus (also given to us by Mike Barber) showing the area each station on each clock waters. We then matched these areas with a map showing the differentiation between lawn and plant/bark beds. The gallons of water per week were found for the lawns by adding up the gal/week of all the stations that water lawn.

	SUMMER WATERING				WINTER WATERING
	station	time/week (min)	GPM	gal/week	station	time/week(min)	GPM	gal/week

Olin #1	4	140	52.8	7392	4	36	52.8	1901
	5	210	24	5040	5	60	24	1440
	6	210	8	1680	6	60	8	480
	7	105	27	2835	7	60	27	1620
	10	112	36	4032	10	27	36	972
	13	105	24	2520	13	54	24	1296
	14	175	20	3500	14	51	20	1020
	16	175	44.4	7770	16	45	44.4	1998

Jacobs #3	2	175	29.6	5180	2	75	29.6	2220
	7	140	10.8	1512	7	60	10.8	648
	12	56	31.35	1756	12	24	31.35	752

Parsons #4	6	175	28	4900	6	45	28	1260
	7	140	26	3640	7	45	26	1170
	4	105	30	3150	4	15	30	450
	10	105	11	1155	10	30	11	330
	12	140	27	3780	12	60	27	1620

Thomas Garrett #5	3	84	12	1008	3	32	12	384
	4	70	15	1050	4	28	15	420
	5	140	36	5040	5	40	36	1440
	6	140	21	2940	6	40	21	840
	7	210	21	4410	7	44	21	924
	8	140	21	2940	8	60	21	1260
	10	105	59	6195	10	60	59	3540
	11	105	34	3570	11	60	34	2040

Kingston #6	1	175	24	4200	1	68	24	1632
	2	112	33	3696	2	40	33	1320
	3	210	36	7560	3	24	36	864
	4	210	6	1260	4	32	6	192
	7	210	39	8190	7	48	39	1872
	8	210	73	15330	8	32	73	2336
	9	77	7	539	9	48	7	336
	10	105	12	1260	10	40	12	480
	11	210	29	6090	11	44	29	1276
	12	140	39	5460	12	32	39	1248
	13	84	13	1092	13	32	13	416
	14	98	15	1470	14	60	15	900

Platt #7	4	210	36	7560	4	20	36	720
	5	210	36	7560	5	60	36	2160
	10	196	10.5	2058	10	48	10.5	504
	11	189	43.5	8222	11	48	43.5	2088
	12	196	40.5	7938	12	48	40.5	1944
	13	189	48	9072	13	48	48	2304

Bell Pool #8	4	140	28.5	3990	4	40	28.5	1140
	5	105	20.4	2142	5	40	20.4	816
	6	140	14.4	2016	6	40	14.4	576
	7	140	16.8	2352	7	40	16.8	672
	8	280	69	19320	8	100	69	6900
	9	112	15.6	1747	9	40	15.6	624
	10	126	30	3780	10	72	30	2160
	13	112	18	2016	13	40	18	720
	15	189	36.8	6955	15	68	36.8	2502
	17	140	9.6	1344	17	64	9.6	614
	19	140	19.5	2730	19	48	19.5	936
	20	140	19.2	2688	20	40	19.2	768
	21	175	48	8400	21	52	48	2496
	22	175	54	9450	22	52	54	2808
	26	56	12	672	26	52	12	624
	27	175	27.6	4830	27	52	27.6	1435
	30	175	41.4	7245	30	60	41.4	2484

Marks West #9	1	140	34.65	4851	1	60	34.65	2079
	3	140	21.45	3003	3	60	21.45	1287
	5	140	16.5	2310	5	60	16.5	990

Marks East #10	1	210	44.1	9261	1	80	44.1	3528

Rec Center #11	12	175	18.15	3176	12	60	18.15	1089
	14	210	48	10080	14	80	48	3840
	15	210	42	8820	15	80	42	3360
	16	210	30	6300	16	80	30	2400
	17	210	24	5040	17	80	24	1920
	19	175	68.6	12005	19	100	68.6	6860
	20	105	13.2	1386	20	60	13.2	792
	21	210	72	15120	21	100	72	7200
	22	210	27	5670	22	100	27	2700
	23	210	27	5670	23	100	27	2700
	24	210	27	5670	24	100	27	2700

East Dorm #12	4	175	60	10500	4	45	60	2700
	5	105	18	1890	5	45	18	810
	6	105	9.6	1008	6	45	9.6	432
	7	70	9.9	693	7	45	9.9	446
	8	175	48	8400	8	60	48	2880
	9	119	19.8	2356	9	35	19.8	693
	10	420	110.55	46431	10	90	110.55	9950
	11	420	73.5	30870	11	135	73.5	9923
	13	175	42	7350	13	30	42	1260
	14	119	15.5	1845	14	60	15.5	930
	15	175	66	11550	15	75	66	4950
	16	175	44.1	7718	16	45	44.1	1985
	17	175	42	7350	17	60	42	2520
	18	140	49	6860	18	45	49	2205

Garrett House #13	1	161	37.95	6110	1	45	37.95	1708
	2	196	39.2	7683	2	60	39.2	2352
	4	140	42.9	6006	3	30	42.9	1287

Atwood #14	1	210	33.3	6993	1	60	33.3	1998
	2	420	14	5880	2	180	14	2520
	3	280	66	18480	3	60	66	3960
	4	280	24	6720	4	60	24	1440
	5	280	48	13440	5	60	48	2880
	11	140	18	2520	11	30	18	540
	12	210	39	8190	12	60	39	2340

Case West #15	1	245	29.6	7252	1	80	29.6	2368
	2	245	58.8	14406	2	80	58.8	4704
	3	245	60	14700	3	80	60	4800
	4	245	58.8	14406	4	100	58.8	5880
	5	140	53.9	7546	5	80	53.9	4312
	6	140	58.8	8232	6	80	58.8	4704
	7	105	39.2	4116	7	60	39.2	2352
	8	140	44.7	6258	8	60	44.7	2682
	9	105	42.9	4505	9	60	42.9	2574
	10	140	135	18900	10	64	135	8640
	11	245	189	46305	11	120	189	22680
	12	245	220	53900	12	120	220	26400
	13	245	192.5	47163	13	120	192.5	23100
	14	245	220	53900	14	120	220	26400
	15	63	162	10206	15	20	162	3240
	16	245	189	46305	16	120	189	22680
	17	245	220	53900	17	120	220	26400
	18	245	192.5	47163	18	120	192.5	23100
	22	140	15.6	2184	22	60	15.6	936
	24	210	15.12	3175	24	48	15.12	726

Case East #16	10	105	24	2520	10	60	24	1440
	11	105	32.6	3423	11	60	32.6	1956
	12	105	18	1890	12	60	18	1080
	13	112	16.38	1835	13	64	16.38	1048
	19	126	36	4536	19	72	36	2592
	23	175	68.6	12005	23	80	68.6	5488
Total (gal/week)				1,083,162				419,327

Separating out the water for Linde Field (Case West#15, clocks 10-18):
Water to Linde Field =				377,741				182,640
Water to other turf =				705,421				236,687

Linde Field = 2 acres.	Dividing 2 acres into 377,741 gal/week = 7 inches H₂O /week in summer
	Dividing 2 acres into 182,640 gal/week = 3.4 inches H₂O/week in winter

Other turf = 9 acres.	Dividing 9 acres into 705,421 gal/week = 2.9 inches H₂O /week in summer
	Dividing 9 acres into 236,687 gal/week = 1 inches H₂O/week in winter

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