WAT-IP-MonthlySampling.01 Charles Hopkinson

Ecosystems Center MBL 7 MBL St Woods Hole MA 02543 USA

Plum Island Ecosystems LTER Program

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu http://ecosystems.mbl.edu/PIE/ Ed Rastetter additional investigator Joe Vallino additional investigator Michael Williams additional investigator Solange Filoso additional investigator Luc Claessens additional investigator Jeff Evans additional investigator 2001 Nutrient data set for the Ipswich River main stem, major tributaries, and headwaters. Data are from base flow conditions (BASE), except were indicated as storm flow (EVENT). Samplings were from March 1999 to May 2001, collected by the Ipswich River Watershed Association (IRWA) and analyzed at MBL PIE LTER inorganic nutrients Ipswich River ammonium nitrate nitrogen phosphate phosphorus watershed Acceptance and utilization of PIE-LTER data requires that: The Principal Investigator be sent a notice stating reasons for acquiring any data and a description of the publication intentions. The Principal Investigator of the data set be sent a copy of the report or manuscript prior to submission and be adequately cited in any resultant publications A copy of any resultant publications should be sent to: Principal Investigator Ecosystems Center Marine Biological Laboratory Woods Hole, MA 02543 http://ecosystems.mbl.edu/PIE/data/WAT/WAT-IP-MonthlySampling.html Ipswich River watershed, Massachusetts -71.3343127 -70.7134174 42.4465968 42.7602526 1999-03-28 2001-05-27 Data Manager

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu http://ecosystems.mbl.edu/PIE/ Plum Island Ecosystems LTER

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu http://ecosystems.mbl.edu/PIE/ Station names and locations Station ID Location River km Town Location Main Stem Ipswich River STATE X STATE Y IP00 Woburn Street 50.486 Wilmington 229261 922641 IP01 Mill Street 46.471 Reading 231973 923476 IP03 Central Street 43.924 North Reading 233673 924718 IP04 Route 62 41.709 North Reading 235314 925186 IR-PS Pumping Station 38.67 North Reading 237134 924693 IP06 Bostik 36.728 Middleton 238657 924466 Hilldale Hilldale Avenue 34.698 Middleton 240318 923859 IP08 Log Bridge Road (West St.) 31.317 Middleton 241607 925387 IP10 Route 62 28.072 Middleton 241318 927369 IP11 Peabody Street 24.85 Middleton 241264 929664 IP13 Rowley Bridge Road 21.374 Topsfield 243730 930853 IP14 Salem Road 19.487 Topsfield 245138 930709 IR-97 Route 97 17.988 Topsfield 246323 930525 IP16 IRWS - Boat Launch 15.309 Topsfield 247653 930787 IP18 Asbury Road 9.857 Topsfield 248221 933850 IP20 Winthrop Street 7.341 Ipswich 249961 934438 IP22 Mill Road 4.054 Ipswich 252322 934396 IP24 Sylvania Dam 0 Ipswich 254279 936547 Main Stem Tributaries MB01 Martins Brook at Park St. 44.906 North Reading 232739 924632 BB Boston Brook at Peabody St. 25.683 Middleton 240744 929741 FB-BV Fish Brook at Brookview Rd. 21.468 Boxford 238700 935037 FB-MI Fish Brook at Middleton Rd. 21.468 Boxford 240634 934316 FB-WA Fish Brook at Washington St. 21.468 Boxford 243166 931249 HB-01 Howlett Brook at Ipswich Rd. 9.878 Topsfield 247794 933994 MR-1A Miles River at County Rd. 2.176 Ipswich 253852 934390 GC Green wood Creek Ipswich Upper Ipswich River Tributaries LB Lubbers Brook at Glen Rd. 56.116 Wilmington 226040 923979 MMB Maple Meadow Brook at Wildwood St. 52.054 Wilmington 228204 922522 Anne Giblin

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7488 agiblin@mbl.edu Lead PI Hap Garritt

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu Information Manager The Plum Island Ecosystems (PIE) LTER is an integrated research, education and outreach program whose goal is to develop a predictive understanding of the long-term response of watershed and estuarine ecosystems at the land-sea interface to changes in climate, land use and sea level. The principal study site is the Plum Island Sound estuary, its coupled Parker, Rowley and Ipswich River watersheds and the adjacent coastal ocean, the Gulf of Maine. The PIE LTER focuses on how several aspects of global change influence organic matter and inorganic nutrient biogeochemistry and estuarine foodwebs. The inputs of organic matter and nutrients from land, ocean and marshes interact with the external drivers (climate, land use, river discharge, sea level) to dictate the extent and degree of nutrient and organic matter processing and determine the spatial patterns of estuarine productivity and trophic structure. This material is based upon work supported by the National Science Foundation under Grants OCE-9726921, OCE-0423565. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. The Plum Island Ecosystems (PIE) LTER site, is located in northeastern Massachusetts, 42.72 N, 70.85 W. The PIE LTER lies at the interface of a thinly soiled, formerly glaciated New England land mass and the highly productive Gulf of Maine. Three watersheds comprise the estuarine drainage basin: Parker (155 km2), Rowley (26 km2) and Ipswich (404 km2). The Ipswich River watershed is highly urbanized with Boston "bedroom" communities encroaching in the headwater region while the Parker is less urbanized and retains a higher proportion of forest. -71.2198 -70.7568 42.8276 42.4965 0 100 meter uid=PIE,o=lter,dc=ecoinformatics,dc=org all public read WAT-IP-MonthlySampling.dat Nutrient data set for the Ipswich River main stem, major tributaries, and headwaters from March 1999 to May 2001. WAT-IP-MonthlySampling.dat 1 column , http://ecosystems.mbl.edu/PIE/data/WAT/data/WAT-IP-MonthlySampling.dat Sample collector Sample collector Group that collected sample Group that collected sample blank no data StationID StationID Station identification Station identification blank no data Location Location Sample location description or name Sample location description or name blank no data River km at Dam River km at Dam Distance from Sylvania Dam, Ipswich, MA (0 km) kilometer real blank no data Town Town Town that sample was collected in Town that sample was collected in blank no data STATE X STATE X x coordinates (meters) in MA state plane NAD 83 meter real blank no data STATE Y STATE Y y coordinates (meters) in MA state plane NAD 83 meter real blank no data CATEGORY CATEGORY condition of stream flow BASE base stream flow EVENT storm stream flow event blank no data Date Date Date sample was collected dd-mmm-yyyy blank no data Sample number Sample number Sample number identification Sample number identification blank no data NH4 NH4 Ammonium concentration as NH4-N microMolesPerLiter real blank no data NO3 NO3 Nitrate concentration as NO3-N microMolesPerLiter real blank no data TDN TDN Total dissolved nitrogen concentration as N microMolesPerLiter real blank no data PO4 PO4 Phosphate concentration as PO4-P microMolesPerLiter real blank no data TDP TDP Total dissolved phosphorus concentration as P microMolesPerLiter real blank no data Cl Cl Chloride concentration as Cl microMolesPerLiter real blank no data SO4 SO4 Sulfate concentration as SO4-S microMolesPerLiter real blank no data Comments Comments Information pertaining to individual data points Information pertaining to individual data points blank no data µM = µmoles per liter of solution