2026-08-20T04:40:56-07:00 2025-08-31 364774142 Minsk Gould Tattrie & Lussier LLP 275 Turnpike St Suite 203 Canton MA 02021 990 2024-09-01 222517414 Blue Hill Observatory Science Center Inc BLUE 6176960562 1 Observatory Service Rd Milton MA 02186 Dr Alex J Evans Executive Director 2026-08-20 true true Eric D Lussier P00532416 7813295770 X 2024 2025-03-06 01:10:19Z Tamara Shapiro Ledley 661605 false X bluehill.org X 1981 MA To continue monitoring weather the same way as done since 1885. To maintain and develop a meticulous weather and climate record. To educate the public about Atmospheric Science, the history of Blue Hills observatory and many STEM topics. 13 13 14 15 0 402395 513898 129290 100313 474 761 14856 13235 547015 628207 0 0 375653 460854 0 84548 293530 165005 669183 625859 -122168 2348 409431 414016 6085 8322 403346 405694 To continue monitoring weather the same way as done since 1885. To maintain and develop a meticulous weather and climate record. To educate the public about Atmospheric Science, the history of Blue Hills observatory and many STEM topics. false false 182554 60326 The Organization offered a variety of educational programs throughout the year, including a series of outdoor events focused on weather phenomena. These programs featured tours of the Observatory and included interviews with authors, meteorologists, and other science professionals. Additionally, the Organization participated in the Southern New England Weather Conference, which it co-hosts with the National Weather Service. 93553 36000 The Organization observes and records the weather for current and future generations. 42917 5788 The Organization has refreshed its membership program to give members even more ways to engage with the Observatory. Members now receive regular communications from the Organization and have the opportunity to purchase books, Observatory souvenirs, educational toys, and science kits. Additional member benefits include exclusive tours of the Observatory, as well as access to volunteer opportunities and internships. These enhancements reflect the Organization's commitment to providing meaningful and engaging experiences for its members. 319024 true true false false false false false true false false true false false true false false false false false false false false false false true false false false false false false false false false false false false false false false false false false false false false false true 0 0 false 14 true false false false false false false false 0 false false false false false false false false false false X 13 13 false false false false false false false true true false false true true true true true true true true false MA X The Organization 6176960562 1 Observatory Service Road Milton MA 02186 Charles T Orloff Executive Dir. 30.00 0.00 X 64240 0 0 Samilys Rodriguez Director 1.00 0.00 X 0 0 0 Derrick Dominique Treasurer 1.00 0.00 X X 0 0 0 Robert Thompson Board Chair 1.00 0.00 X X 0 0 0 Janice Richards Director 1.00 0.00 X 0 0 0 Tim Kelly Director 1.00 0.00 X 0 0 0 Christine Caswell Director 1.00 0.00 X 0 0 0 Nick Cacici Director 1.00 0.00 X 0 0 0 KellyAnne Mahoney Director 1.00 0.00 X 0 0 0 Dr Bruce Anderson Director 1.00 0.00 X 0 0 0 Dr Tamara Ledley Clerk 1.00 0.00 X X 0 0 0 Milton Irving Director 1.00 0.00 X 0 0 0 Jason Brewer Director 1.00 0.00 X 0 0 0 Kevin Lemanowicz Director 1.00 0.00 X 0 0 0 64240 0 false false false 0 199214 314684 513898 Climatological Observatio 519200 34200 34200 Memberships 5788 5788 Tours & workshops 519200 60325 60325 100313 761 761 0 0 0 0 16530 14603 1927 1927 0 29805 18795 11010 11010 Miscellaneous 298 298 298 628207 112382 1927 0 0 0 0 64240 19272 25696 19272 0 338522 218358 74995 45169 0 25327 14943 6332 4052 32765 19331 8192 5242 0 1238 1238 9795 9795 0 0 0 14675 14675 810 810 2439 2439 9240 5452 2310 1478 0 2148 1267 537 344 2131 1257 533 341 0 0 0 0 36546 21562 9136 5848 8625 8625 Bad debt expense 43998 43998 Miscellaneous 6650 3925 1661 1064 Weather Supplies 5626 5626 Director and staff expense 4418 4418 16666 8031 7707 928 625859 319024 222287 84548 10068 42838 49352 88437 0 125343 11400 0 0 0 27661 37797 1132 1134 410680 236605 120047 174075 0 0 0 25828 8335 50000 50000 409431 414016 3663 6639 2422 1683 6085 8322 X 403346 405694 403346 405694 409431 414016 2348 X X true X false false false X 216252 406212 538274 408017 519686 2088441 198475 131739 126117 162847 142956 762134 0 0 12000 12000 12000 12000 12000 60000 426727 549951 676391 582864 674642 2910575 0 0 2910575 47 104 1017 474 761 2403 0 47 104 1017 474 761 2403 0 0 426774 550055 677408 583338 675403 2912978 0.99920 0.99900 0.00080 0.00100 X RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED false 168191 19706 148485 214791 194821 19970 27698 22078 5620 174075 Development 50000 50000 Part III, Line 1a: If organization elected under SFAS 116 to not report are, historical treasures, o The Organization has a collection of historical artifacts that it protects and preserves. The collection provides a foundation for exhibitions, research, and educational programs dedicated to teaching weather, climate and environmental systems, and producing and keeping records of weather and climate observations. The Organization has policies and practices in place to ensure the collection is protected and preserved.The Organization accounts for historical artifacts as collection items if they meet the definition of a collection according to the criteria for recognition under Financial Accounting Standards Board (FASB) Accounting Standards (ASC) 958-360-25-3 Not-for-Profit Entities-Property, Plant, and Equipment. The criteria states that to be a collection the assets are (a) held for public exhibition, (b) protected and preserved, and (c) are subject to an organizational policy that requires the proceeds from the sale of historical artifacts to be used to acquire other items for collections absent any donor-imposed restrictions. Each of the items is catalogued, preserved, and cared for, and activities verifying their existence and assessing their condition are performed continuously.The Organization has a policy of not capitalizing the collection of historic artifacts in its financial statements. Accordingly, no collection items are recognized as assets, weather they are purchased or received as a donation. Purchases of collection items reduce unrestricted net assets in the period when purchased. Proceeds from deaccessions or insurance recoveries are reflected as increases in the appropriate net asset class. There were not any additions of individual objects to the collection during the year ended August 31, 2025, through gifts, transfers, or purchases. The Organization did not purchase or expense individual objects during the year ended August 31, 2025. There were no deaccessions during the year ended August 31, 2025. As of August 31, 2025, the Organization has approximately $230,000 of historical artifacts that have not been recorded in the accompanying financial statements. false Southern New England Weather Conference 16530 16530 14603 16530 16530 14603 14603 1927 Form 990, Part VI, Section B, Line 11b A draft of the Form 990 is distributed to all members of the Board of Directors for review prior to filing. The Board reviews the return in detail, comparing current-year results to prior years and budgeted amounts to actual results, and any questions or concerns are addressed before the return is finalized and filed. Form 990, Part VI, Section B, Line 12c The organization requires Board members, officers, and key employees to annually disclose any potential conflicts of interest in writing. When a conflict arises on a specific matter, the individual discloses it, does not participate in discussion or voting on that matter, and the recusal is documented in the minutes. Form 990, Part VI, Section B, Line 15a The Board of Directors annually reviews and approves compensation for the Executive Director and other key employees. As part of this process, the Board researches comparability data, including compensation surveys and salary information from similar organizations by size, budget, and geographic region, to ensure compensation is reasonable. The Board's discussion and decision are documented in the meeting minutes. Form 990, Part VI, Section B, Line 15b The Board of Directors annually reviews and approves compensation for the Executive Director and other key employees. As part of this process, the Board researches comparability data, including compensation surveys and salary information from similar organizations by size, budget, and geographic region, to ensure compensation is reasonable. The Board's discussion and decision are documented in the meeting minutes. Form 990, Part VI, Section C, Line 19 The organization makes its governing documents, policies and financial statements available upon request. Form 990, Part XII, Line 2c The Board of Directors assigns individuals that are responsible for oversight and selection of outside auditors.