{"text_format":"dbase-jsonl-2026-09-30","columns":[{"name":"get","type":"number","width":11,"decimals":0},{"name":"ges","type":"character","width":110},{"name":"gep","type":"character","width":120},{"name":"id_number","type":"character","width":25},{"name":"name","type":"character","width":100},{"name":"ngr","type":"character","width":15},{"name":"x","type":"number","width":11,"decimals":0},{"name":"y","type":"number","width":11,"decimals":0},{"name":"type","type":"character","width":25},{"name":"condition_v","type":"character","width":15},{"name":"associated_","type":"character","width":40},{"name":"rowid","type":"number","width":11,"decimals":0}],"n_rows":250,"rows_kept":250,"cut":false,"deleted_skipped":0,"read_ended":"whole","bounds":"16MiB/16384/4096/first_that_fit","version":"dbase_level_three_memo","encoding_class":"enc_absent","reader":"statdb_count/9"}
[10,null,null,"IWW024","Reservoir at Hughes's Patch Hirwaun","SN92816 06069",292816,206069,"Reservoir","B","Hirwaun ?",1]
[10,null,null,"IWW025","Reservoir at Hughes's Patch Hirwaun","SN92967 06078",292967,206078,"Reservoir","U","Hirwaun ?",2]
[10,null,null,"IWW026","Reservoir at Hughes's Patch Hirwaun","SN93119 05951",293119,205951,"Reservoir","B","Hirwaun ?",3]
[10,null,null,"IWW004","New Pond Hirwaun","SN9489205799",294892,205799,"Reservoir","B","Hirwaun",6]
[10,null,null,"IWW017","Reservoir North of Hirwaun Ironworks","SN95833 06149",295833,206149,"Reservoir","D","Hirwaun",12]
[10,null,null,"IWW012","Reservoir at Bute Pit","SN95332 04544",295332,204544,"Reservoir","U","Hirwaun",15]
[10,null,null,"IWW015","Small Pond at Bute Pit","SN95234 04688",295234,204688,"Pond","D","Hirwaun",17]
[10,null,null,"IWW028","Reservoir Near Slade's Patches, Hirwaun","SN96575 03959",296575,203959,"Reservoir","D","N/A",19]
[10,null,null,"IWW029","Reservoir on Slade's Patches","SN96809 04112",296809,204112,"Reservoir","D","N/A",20]
[10,null,null,"IWW047","Reservoir Associated with Llwydcoed Ironworks","SN98714 04928",298714,204928,"Reservoir","U","Llwydcoed",23]
[10,null,null,"IWW022","Pond at Hirwaun Brickworks","SN96091 06113",296091,206113,"Pond","U","Hirwaun",25]
[10,null,null,"IWW050","Reservoir at Llwydcoed Ironworks","SN99349 04470",299349,204470,"Reservoir","D","Aberdare",28]
[10,null,null,"IWW051","Reservoir at Llwydcoed Ironworks","SN99549 04516",299549,204516,"Reservoir","B","Aberdare",29]
[10,null,null,"IWW061","Reservoir, Abernant Ironworks","SO01253 03634",301253,203634,"Reservoir","U","Abernant",31]
[10,null,null,"IWW062","Reservoir (Furnace Pond), Abernant Ironworks","SO01222 03576",301222,203576,"Reservoir","U","Abernant",32]
[10,null,null,"IWW064","Reservoir, Abernant Ironworks","SO01176 03614",301176,203614,"Reservoir","D","Abernant",33]
[10,null,null,"IWW060","Reservoir, Abernant Ironworks","SO01332 03673",301332,203673,"Reservoir","U","Abernant",36]
[10,null,null,"IWW069","Forge Pond, Abernant","SO01182 03179",301182,203179,"Reservoir","D","Abernant",37]
[10,null,null,"IWW068","Pond, Abernant Ironworks","SO01083 03537",301083,203537,"Reservoir","D","Abernant",43]
[10,null,null,"IWW078","Reservoir, Black Band Pit, Aberaman","SO01488 00104",301488,200104,"Reservoir","D","Aberaman",52]
[10,null,null,"IWW081","Reservoir Black Band Pit, Aberaman","SO01574 00158",301574,200158,"Reservoir","D","Aberaman",53]
[10,null,null,"IWW082","Reservoir, Aberaman Ironworks","SO01599 00281",301599,200281,"Reservoir","D","Aberaman",54]
[10,null,null,"IWW079","Reservoir Black Band Pit, Aberaman","SO01441 00149",301441,200149,"Reservoir","D","Aberaman",57]
[10,null,null,"IWW130","Bute Town Reservoir","SO10069 09064",310069,209064,"Reservoir","B","Rhymney",60]
[10,null,null,"IWW131","Reservoir and Feeder Tanks, Bute Town","SO10228 09205",310228,209205,"Reservoir","B","Rhymney",61]
[10,null,null,"IWW146","Reservoir, Blaen Rhymney","SO09830 10491",309830,210491,"Reservoir","B","Rhymney?",66]
[10,null,null,"IWW122","Reservoir Near Rhymney Station, Rhymney Ironworks","SO10965 07483",310965,207483,"Reservoir","D","Rhymney",74]
[10,null,null,"IWW120","Reservoir, Rhymney Ironworks","SO10963 07044",310963,207044,"Reservoir","U","Rhymney",77]
[10,null,null,"IWW110","Reservoir New Dyffryn Pit, Rhymney","SO11063 06899",311063,206899,"Reservoir","U","Rhymney",79]
[10,null,null,"IWW113","Header Tank, Dyffryn Pit, Rhymney","SO11107 06871",311107,206871,"Water Tank","D","Rhymney?",80]
[10,null,null,"IWW114","Reservoir at New Dyffryn Pit","SO11240 06710",311240,206710,"Reservoir","U","Rhymney",81]
[10,null,null,"IWW119","Reservoir, Rhymney Ironworks","SO11140 06965",311140,206965,"Reservoir","D","Rhymney",84]
[10,null,null,"IWW125","Reservoir, Rhymney Ironworks","SO10948 07233",310948,207233,"Reservoir","D","Rhymney",85]
[10,null,null,"IWW149","Bryn-brith Pit Reservoir, Rhymney","SO11466 09593",311466,209593,"Reservoir","D","Rhymney?",87]
[10,null,null,"IWW154","Possible reservoir Bryn-brith, Rhymney","SO11314 09333",311314,209333,"Reservoir","D","N/A",92]
[10,null,null,"IWW150","Possible Reservoir, Bryn-brith Pit","SO11375 09521",311375,209521,"Reservoir","D","Rhymney?",93]
[10,null,null,"IWW165","Reservoir, Pond Row, Rhymney","SO11765 07189",311765,207189,"Reservoir","B","Rhymney",95]
[10,null,null,"IWW168","Reservoir, Rhymney","SO11942 07271",311942,207271,"Reservoir","B","Rhymney",96]
[10,null,null,"IWW163","Reservoir, Rhymney Ironworks","SO11604 07323",311604,207323,"Reservoir","D","Rhymney",97]
[10,null,null,"IWW152","Reservoir, Nant-melyn Pit, Rhymney","SO11378 09202",311378,209202,"Reservoir","D","N/A",102]
[10,null,null,"IWW100","Reservoir, West of Terrace Pit, Rhymney","SO11061 06380",311061,206380,"Reservoir","B","Rhymney",104]
[10,null,null,"IWW105","Reservoir, Terrace Pit, Rhymney","SO11278 06493",311278,206493,"Reservoir","U","Rhymney?",105]
[10,null,null,"IWW117","River Rhymney","SO10696 06342",310696,206342,"River","N/A","Rhymney",116]
[10,null,null,"IWW160","Reservoir, Rhymney Brick and Tile Works","SO10998 08347",310998,208347,"Reservoir","D","Rhymney",118]
[10,null,null,"IWW127","Reservoir, Pitwellt Pit, Rhymney","SO10778 07711",310778,207711,"Reservoir","D","Rhymney",121]
[10,null,null,"IWW164","Reservoir, Rhymney Ironworks","SO11591 07188",311591,207188,"Reservoir","D","Rhymney",123]
[10,null,null,"IWW129","Reservoir, Rhymney Ironworks","SO10435 08381",310435,208381,"Reservoir","D","Rhymney",127]
[10,null,null,"IWW158","Reservoir, Rhymney Upper Furnace","SO11001 09279",311001,209279,"Reservoir","B","Rhymney Old Furnace",130]
[10,null,null,"IWW223","Reservoir, Globe Pit, Tredegar","SO13978 09407",313978,209407,"Reservoir","D","Tredegar",131]
[10,null,null,"IWW222","Reservoir, Tredegar Ironworks","SO14266 09377",314266,209377,"Reservoir","D","Tredegar",133]
[10,null,null,"IWW221","Feeder Channel, Tredegar","SO14252 09561",314252,209561,"Water Channel","D","Tredegar",134]
[10,null,null,"IWW215","Reservoir, Sirhowy","SO13825 10212",313825,210212,"Reservoir","D","Sirhowy?",137]
[10,null,null,"IWW216","Reservoir, Charles St, Sirhowy","SO14127 09948",314127,209948,"Reservoir","D","Sirhowy?",139]
[10,null,null,"IWW213","Reservoir, Quick Pit, Sirhowy","SO13514 10215",313514,210215,"Reservoir","D","?",141]
[10,null,null,"IWW270","Reservoir, Tredegar Ironworks","SO14899 09264",314899,209264,"Reservoir","U","Tredegar",143]
[10,null,null,"IWW269","Reservoir, Tredegar Ironworks","SO14939 09258",314939,209258,"Reservoir","B","Tredegar",144]
[10,null,null,"IWW268","Reservoir, Tredegar Ironworks","SO15082 07141",315082,209141,"Reservoir","B","Tredegar",145]
[10,null,null,"IWW275","Scotch Peter's Reservoir, Tredegar Ironworks","SO1551408865",315514,208865,"Reservoir","B/C","Tredegar",151]
[10,null,null,"IWW280","Feeder Pond, Tredegar Ironworks","SO15223 08726",315223,208726,"Pond","B","Tredegar Ironworks",157]
[10,null,null,"IWW283","Georgetown Reservoir, Tredegar","SO1554007867",315539,207866,"Reservoir","B","Tredegar?",160]
[10,null,null,"IWW209","Reservoir, Cefn Goleu, Tredegar","SO13992 07615",313992,207615,"Reservoir","B","Tredegar?",164]
[10,null,null,"IWW208","Reservoir Near Ty-trist Colliery, Tredegar","SO14125 07687",314125,207687,"Reservoir","B","?",165]
[10,null,null,"IWW204","Reservoir, Ashtree Coal Pit, Tredegar","SO14143 08037",314143,208037,"Reservoir","U","?",168]
[10,null,null,"IWW203","Large Reservoir at Ashtree Coal Pit","SO14244 07972",314244,207972,"Reservoir","B","?",169]
[10,null,null,"IWW202","Reservoir, Ashtree Coal Pit, Tredegar","SO14101 08195",314101,208195,"Reservoir","U","?",173]
[10,null,null,"IWW201","Reservoir, Ashtree Coal Pit, Tredegar","SO14018 08394",314018,208394,"Reservoir","U","?",174]
[10,null,null,"IWW198","Reservoir near Mountain Pit, Tredegar","SO13350 08741",313350,208741,"Reservoir","B","?",175]
[10,null,null,"IWW197","Reservoir, Mountain Pit, Tredegar","SO13493 08868",313493,208868,"Reservoir","U","?",178]
[10,null,null,"IWW200","Pond Near Temperance Hall, Tredegar","SO14135 08664",314135,208664,"Pond","U","?",180]
[10,null,null,"IWW191","Bryn-bach Pond/Reservoir","SO12241 09982",312241,209982,"Reservoir","D","Sirhowy/Tredegar?",181]
[10,null,null,"IWW193","Reservoir, Bryn-bach","SO12710 10166",312710,210166,"Reservoir","D","Sirhowy/Tredegar?",182]
[10,null,null,"IWW192","Reservoir, Bryn-bach","SO12954 10130",312594,210130,"Reservoir","D","Sirhowy/Tredegar?",183]
[10,null,null,"IWW190","Reservoir, Tafarnau-bach","SO12227 10270",312227,210270,"Reservoir","D","Sirhowy/Tredegar?",184]
[10,null,null,"IWW212","Reservoir, Tredegar Patch Workings","SO13539 09976",313539,209976,"Reservoir","U","Sirhowy/Tredegar?",185]
[10,null,null,"IWW196","Reservoir, Tredegar","SO13191 09274",313191,209274,"Reservoir","D","Tredegar?",186]
[10,null,null,"IWW195","Pond, Tredegar Patch Workings","SO13099 09457",313099,209457,"Pond","D","Tredegar?",187]
[10,null,null,"IWW194","Reservoir, Tredegar Patch Workings","SO12870 09549",312870,209549,"Reservoir","D","Tredegar?",188]
[10,null,null,"IWW230","Reservoir, Sirhowy Ironworks","SO14605 10086",314605,210086,"Reservoir","D","Sirhowy",189]
[7,null,null,"IWW228","Pond, Sirhowy Ironworks","SO14407 10194",314407,210194,"Pond","U","Sirhowy",190]
[10,null,null,"IWW229","Pond, Sirhowy Ironworks","SO14470 10116",314470,210116,"Pond","D","Sirhowy",191]
[10,null,null,"IWW257","Rhyd-y-blew Pond","SO1599611136",315995,211136,"Reservoir","B/C","Beaufort",192]
[10,null,null,"IWW258","Small Rhyd-y-blew Pond","SO1609711026",316096,211025,"Reservoir","A/B","Beaufort",193]
[10,null,null,"IWW241","Reservoir, Waun-y-Pound","SO1534310768",315343,210767,"Reservoir","A/B","Sirhowy/Tredegar?",194]
[10,null,null,"IWW242","Reservoir, Waun-y-Pound","SO1533910817",315339,210817,"Reservoir","U","Sirhowy/Tredegar?",195]
[10,null,null,"IWW244","Reservoir, Waun-y-Pound","SO1546210771",315462,210771,"Reservoir","A/B","Sirhowy/Tredegar?",196]
[10,null,null,"IWW245","Reservoir, Waun-y-Pound","SO1555510806",315554,210806,"Reservoir","D","Sirhowy/Tredegar?",197]
[10,null,null,"IWW243","Feeder Reservoir, Waun-y-pound","SO15351 20952",315351,210952,"Reservoir","D","Sirhowy/Tredegar?",198]
[10,null,null,"IWW256","Pond, North of Waun-y-pound","SO15376 11178",315376,211178,"Pond","D","Beaufort?",199]
[10,null,null,"IWW247","Pond, Waun-y-pound","SO15567 10921",315567,210921,"Pond","D","Sirhowy/Tredegar?",200]
[10,null,null,"IWW249","Pond, Waun-y-pound","SO15667 10865",315667,210865,"Pond","D","Sirhowy/Tredegar?",201]
[10,null,null,"IWW246","Pond, Waun-y-pound","SO15565 10739",315565,210739,"Pond","D","Sirhowy/Tredegar?",202]
[10,null,null,"IWW248","Pond, Waun-y-pound","SO15670 10981",315670,210981,"Pond","D","Sirhowy/Tredegar?",203]
[10,null,null,"IWW240","Reservoir, Waun-y-Pound","SO1517110745",315171,210745,"Reservoir","A/B","Sirhowy/Tredegar?",204]
[10,null,null,"IWW231","Reservoir, Sirhowy Ironworks","SO14496 10486",314496,210486,"Reservoir","D","Sirhowy",205]
[10,null,null,"IWW232","Reservoir, Sirhowy Ironworks","SO14571 10446",314571,210446,"Reservoir","D","Sirhowy",206]
[10,null,null,"IWW239","Reservoir, Bryn-pica, Sirhowy","SO14740 10516",314740,210516,"Reservoir","D","Sirhowy",207]
[10,null,null,"IWW264","Reservoir, Ebbw Vale","SO15917 10338",315917,210338,"Reservoir","B","?",208]
[10,null,null,"IWW266","Pond, Ebbw Vale","SO15798 10266",315798,210266,"Pond","U","?",209]
[10,null,null,"IWW267","Small Reservoir, Ebbw Vale","SO15678 10396",315678,210396,"Reservoir","D","?",210]
[10,null,null,"IWW227","Feeder Pond, Sirhowy Ironworks","SO14214 10400",314214,210400,"Pond","D","Sirhowy",223]
[10,null,null,"IWW237","Water Tank, Sirhowy","SO14467 10788",314467,210788,"Water Tank","D","Sirhowy",228]
[10,null,null,"IWW236","Pond, Sirhowy","SO14423 10789",314423,210789,"Pond","D","Sirhowy",229]
[10,null,null,"IWW261","Pond Near Rhyd-y-blew","SO16294 10708",316294,210708,"Pond","U","Beaufort?",231]
[10,null,null,"IWW306","Reservoir, Ebbw Vale Quarry","SO16494 09449",316494,209449,"Reservoir","D","Ebbw Vale",233]
[10,null,null,"IWW300","Reservoir, Lethbridge Terrace","SO16942 07936",316942,207936,"Reservoir","U","Victoria Ironworks/Victoria Colliery",235]
[10,null,null,"IWW303","Reservoir, Victoria Colliery","SO17009 08270",317009,208270,"Reservoir","D","Victoria Colliery",237]
[10,null,null,"IWW304","Reservoir, Victoria Colliery","SO17001 08347",317001,208347,"Reservoir","U","Victoria Colliery",238]
[10,null,null,"IWW297","Reservoir, Victoria Ironworks","SO16969 07691",316969,207691,"Reservoir","B","Victoria Ironworks",239]
[10,null,null,"IWW296","Reservoir, Glan Ebbw","SO17132 07329",317132,207329,"Reservoir","B","Victoria Ironworks",243]
[10,null,null,"IWW322","Reservoir, Ty'n-y-fyd","SO17515 07367",317515,207367,"Reservoir","D","Victoria Ironworks",250]
[10,null,null,"IWW321","Reservoir, Coed Ty'n-y-fyd","SO17499 07546",317499,207546,"Reservoir","D","Victoria Ironworks",251]
[10,null,null,"IWW308","Gnapwg Reservoir","SO17869 08361",1271645,831659,"Reservoir","B","Bessemer Steelworks?",254]
[10,null,null,"IWW312","Reservoir, Garn Wood","SO17951 07160",317951,207160,"Reservoir","U","Bessemer/Victoria",255]
[10,null,null,"IWW313","Reservoir, Daren y Truyn","SO18080 07424",318080,207424,"Reservoir","B","Victoria Ironworks/Bessemer Ironworks",256]
[10,null,null,"IWW332","Reservoir, near Gnapwg","SO17792 08860",317792,208860,"Reservoir","B","Ebbw Vale/Bessemer",262]
[10,null,null,"IWW333","Reservoir, near Gnapwg","SO17606 08859",317606,208859,"Reservoir","B","Ebbw Vale",264]
[10,null,null,"IWW335","Reservoir, Gwaun dyweirch","SO17439 08799",317439,208799,"Reservoir","D","Bessemer Steelworks",266]
[10,null,null,"IWW329","Reservoir, Coed Ty-llwyn","SO17593 08258",317593,208258,"Reservoir","U","Bessemer Steel Works",269]
[10,null,null,"IWW337","Reservoir, Bessemer Steelworks","SO17526 08450",317526,208450,"Reservoir","D","Bessemer Steelworks",274]
[10,null,null,"IWW347","Pond, Next to Coal Shaft, Ebbw Vale","SO17466 08921",317466,208921,"Pond","D","Ebbw Vale",278]
[10,null,null,"IWW346","Pond, Near Coal Mine, Ebbw Vale","SO17481 09034",317481,209034,"Pond","D","Ebbw Vale",280]
[10,null,null,"IWW348","Reservoir, Ebbw Vale","SO17036 08868",317036,208868,"Reservoir","D","Ebbw Vale",282]
[10,null,null,"IWW349","Pond, Ebbw Vale Ironworks","SO17020 08941",317020,208941,"Pond","D","Ebbw Vale",283]
[10,null,null,"IWW350","Pond, School Row, Ebbw Vale","SO16929 09057",316929,209057,"Pond","D","Ebbw Vale",284]
[10,null,null,"IWW351","Pond, School Row, Ebbw Vale","SO16927 09144",316927,209144,"Pond","D","Ebbw Vale",285]
[10,null,null,"IWW352","Pond, Pentwyn House","SO16821 09186",316821,209186,"Pond","D","Ebbw Vale",286]
[10,null,null,"IWW354","Coalbrookvale Reservoir","SO19080 09183",319080,209183,"Reservoir","B","Coalbrookvale ironworks",287]
[10,null,null,"IWW360","Coalbrookvale Holding Tank","SO19069 09119",319069,209119,"Holding Tank","D","Coalbrookvale ironworks",289]
[10,null,null,"IWW353","Reservoir, Ysgubor Fach","SO19044 09356",319044,209356,"Reservoir","B","Coalbrookvale ironworks",290]
[10,null,null,"IWW362","Tank, Tir-ywen","SO18863 09383",318863,209383,"Tank","B","Coalbrook mine",292]
[10,null,null,"IWW368","Bwlch-y-garn Reservoir","SO17888 09320",317888,209320,"Reservoir","B","Ebbw Vale/Bwlch-y-garn",293]
[10,null,null,"IWW364","Bwlch-y-garn Reservoir","SO17877 09278",317877,209278,"Reservoir","B","Ebbw Vale/Bwlch-y-garn",294]
[10,null,null,"IWW355","Reservoir, Ebbw Vale","SO16775 09400",316775,209400,"Reservoir","D","Ebbw Vale",298]
[10,null,null,"IWW356","Reservoir, Ebbw Vale","SO16733 09467",316733,209467,"Reservoir","D","Ebbw Vale",299]
[10,null,null,"IWW359","Reservoir, Ebbw Vale","SO17067 09385",317067,209385,"Reservoir","D","Ebbw Vale",300]
[10,null,null,"IWW370","Reservoir, Ebbw Vale","SO17399 09486",317399,209486,"Reservoir","B","Ebbw Vale",301]
[10,null,null,"IWW365","Reservoir, Ebbw Vale Brickworks","SO16250 09805",316250,209805,"Reservoir","D","Ebbw Vale brickworks",302]
[10,null,null,"IWW367","Reservoir, Highfield House, Ebbw Vale","SO16430 09806",316430,209806,"Reservoir","D","Ebbw Vale brickworks",303]
[10,null,null,"IWW596","Pond, Ebbw Vale Brickworks","SO15969 10016",315969,210016,"Pond","D","Ebbw Vale Brickworks?",307]
[10,null,null,"IWW377","Newtown Reservoir","SO17224 10173",317224,210173,"Reservoir","D","Ebbw Vale?",308]
[10,null,null,"IWW378","Reservoir, Pant-y-fforest pit","SO17210 10416",317210,210416,"Reservoir","D","Pant y Fforest mine",309]
[10,null,null,"IWW379","Pant-y-fforest Reservoir","SO17240 10514",317240,210514,"Reservoir","D","Pant y fforest coalmine",310]
[10,null,null,"IWW380","Reservoir, Pant-y-fforest","SO17239 10590",317239,210590,"Reservoir","D","Pant y Fforest coalmine",311]
[10,null,null,"IWW310","Reservoir, Mount Pleasant","SO16546 10190",316546,210190,"Reservoir","D","Ebbw Vale brickworks?",312]
[10,null,null,"IWW323","Mount Pleasant Reservoir","SO16468 10237",316468,210237,"Reservoir","D","Ebbw Vale brickworks?",313]
[10,null,null,"IWW403","Pen-y-waun Reservoir","SO18148 10333",318148,210333,"Reservoir","B","Nant-y-glo?",315]
[10,null,null,"IWW405","Reservoir, Pen-y-waun","SO10230 10449",318230,210449,"Reservoir","D","Nant-y-glo?",316]
[10,null,null,"IWW406","Reservoir, Pen-y-waun","SO18273 10432",318273,210432,"Reservoir","D","Nant-y-glo?",317]
[10,null,null,"IWW407","Reservoir, Pen-y-waun","SO18343 10389",318343,210389,"Reservoir","D","Nant-y-glo?",318]
[10,null,null,"IWW408","Reservoir, Pen-y-waun","SO18432 10291",318432,210291,"Reservoir","U","Nant-y-glo?",320]
[10,null,null,"IWW409","Reservoir, Pen-y-waun","SO18448 10270",318448,210270,"Reservoir","U","Nant-y-glo",321]
[10,null,null,"IWW410","Reservoir, Caban-gwyn","SO18536 10140",318536,210140,"Reservoir","B","Nant-y-glo?",322]
[10,null,null,"IWW390","Reservoir, Ty'r-meddyg","SO17152 10932",317152,210932,"Reservoir","D","Pant y fforest pit",323]
[10,null,null,"IWW419","Maes-Alec-uchaf Reservoir","SO17315 11197",317315,211197,"Reservoir","D","Beaufort",325]
[10,null,null,"IWW417","Reservoir, Maes-Alec-uchaf","SO17321 11332",317321,211332,"Reservoir","D","Beaufort",326]
[10,null,null,"IWW416","Reservoir, Maes-Alec-uchaf","SO17356 11412",317356,211412,"Reservoir","D","Beaufort ironworks",327]
[10,null,null,"IWW411","Beaufort Reservoir","SO17100 11305",317100,211305,"Reservoir","D","Beaufort",328]
[10,null,null,"IWW413","Reservoir, Beaufort","SO17076 11175",317076,211175,"Reservoir","D","Beaufort ironworks",329]
[10,null,null,"IWW387","Holding tank, Ebbw Vale","SO16973 10407",316973,210407,"Holding Tank","D","Ebbw Vale?",332]
[10,null,null,"IWW399","Pont-y-gof","SO16934 10171",316934,210171,"Reservoir","D","Ebbw Vale",338]
[10,null,null,"IWW396","Pont-y-gof Reservoir","SO16943 10000",316943,210000,"Reservoir","D","Ebbw Vale Ironworks",344]
[10,null,null,"IWW400","Reservoir, Pant-y-ddraenen","SO17271 11515",317271,211515,"Reservoir","D","Pany-y-ddraenen brickworks?",349]
[10,null,null,"IWW420","Reservoir, Pant-y-ddraenen","SO17261 11577",317261,211577,"Reservoir","D","Pant-y-ddraenen brickworks?",350]
[10,null,null,"IWW423","Reservoir, Cefn Mawr","SO16423 11734",316423,211734,"Reservoir","U","Beaufort?",351]
[10,null,null,"IWW424","Reservoir, Waun-rydd","SO17676 12793",317676,212793,"Reservoir","B","Nant-y-glo",352]
[10,null,null,"IWW426","Reservoir, Waun-rydd","SO17457 12891",317457,212891,"Reservoir","D","Nant-y-glo",354]
[10,null,null,"IWW385","Pant-y-fforest Reservoir","SO17433 10908",317433,210908,"Reservoir","D","Pant y fforest pit",359]
[10,null,null,"IWW443","Reservoir, Waun-dew","SO1724711909",317247,211909,"Reservoir","D/E","Nant-y-glo",362]
[10,null,null,"IWW446","Reservoir, Waun-dew \"Lower Boat Pond\"","SO1749911877",317498,211877,"Reservoir","A/B","Nant-y-glo",365]
[10,null,null,"IWW445","Reservoir, Waun-dew","SO1741212031",317412,212031,"Reservoir","A/B","Nant-y-glo",367]
[10,null,null,"IWW436","Reservoir, Blaen-clydach","SO17562 13171",317562,213171,"Reservoir","D","Nany-y-glo",370]
[10,null,null,"IWW451","Reservoir, Bryn Pit","SO1799712369",317996,212368,"Reservoir","C/B","Nant-y-glo",373]
[10,null,null,"IWW456","Reservoir, Bryn Pit","SO18005 12279",318005,212278,"Reservoir","C/U","Nant-y-glo",377]
[10,null,null,"IWW458","Reservoir, Bryn Mawr","SO1794312066",317943,212066,"Reservoir","A/B","Nant-y-glo",379]
[10,null,null,"IWW459","Reservoir, Tai-Humphrey-Hughes","SO1790311478",317819,211417,"Reservoir","C","Nant-y-glo ironworks",381]
[10,null,null,"IWW460","Reservoir, Tai-Humphrey-Hughes","SO18039 11436",318039,211436,"Reservoir","D/E","Nant-y-glo",386]
[10,null,null,"IWW466","Reservoir, Tai-Humphrey-Hughes","SO18263 11371",318263,211371,"Reservoir","B","Nant-y-glo",388]
[10,null,null,"IWW467","Reservoir, Twyn-cynnordy","SO18740 11578",318740,211578,"Reservoir","D","Nant-y-glo ironworks",390]
[10,null,null,"IWW479","Reservoir, Winch's Pit","SO18404 11231",318404,211231,"Reservoir","D","Nant-y-glo/Winch's Pit",391]
[10,null,null,"IWW486","Reservoir, Blaen-y-nant","SO19697 11359",319697,211359,"Reservoir","D","Blaen-y-nant iron ore mine",392]
[10,null,null,"IWW490","Reservoir, Blaen-y-nant","SO19645 11270",319645,211270,"Reservoir","D","Blaen-y-nant iron ore mine",393]
[10,null,null,"IWW491","Reservoir, Blaen-y-nant","SO19569 11261",319569,211261,"Reservoir","D","Blaen-y-nant iron ore mine",394]
[10,null,null,"IWW495","Reservoir, Blaen-y-nant","SO19524 11269",319524,211269,"Reservoir","D","Blaen-y-nant iron ore mine",395]
[10,null,null,"IWW475","Reservoir, Holy Trinity Church","SO19064 11429",319064,211429,"Reservoir","D","Nant-y-glo",402]
[10,null,null,"IWW477","Reservoir, Winch's Row","SO18455 11017",318455,211017,"Reservoir","D","Nant-y-glo",403]
[10,null,null,"IWW482","Reservoir, Winch's Buildings","SO18370 10889",318370,210889,"Reservoir","U","Nant-y-glo",404]
[10,null,null,"IWW470","Reservoir, Winch's Row","SO1881511189",318814,211189,"Reservoir","B/E","Nant-y-glo",409]
[10,null,null,"IWW476","Reservoir, Nant-y-glo","SO18908 10835",318908,210835,"Reservoir","D","Nant-y-glo",416]
[10,null,null,"IWW496","Reservoir, Nant-y-glo","SO18929 10925",318929,210925,"Reservoir","D","Nant-y-glo",417]
[10,null,null,"IWW497","Feeder, Nant-y-glo","SO19022 10995",319022,210995,"Feeder","D","Nant-y-glo",418]
[10,null,null,"IWW498","Reservoir, Cinderhole","SO19594 10630",319594,210630,"Reservoir","U","Nant-y-glo",419]
[10,null,null,"IWW503","Reservoir, Croes-y-ceiliog","SO19988 10718",319988,210718,"Reservoir","U","Nant-y-glo",421]
[10,null,null,"IWW499","Reservoir, Croes-y-ceiliog","SO19707 10479",319707,210479,"Reservoir","U","Nant-y-glo",422]
[10,null,null,"IWW500","Turkeytown Reservoir","SO19585 10473",319585,210473,"Reservoir","D","Nant-y-glo",423]
[10,null,null,"IWW501","Reservoir, Turkeytown","SO19421 10529",319421,210529,"Reservoir","D","Nant-y-glo",424]
[10,null,null,"IWW504","Reservoir, Nant-y-glo","SO19015 10336",319015,210336,"Reservoir","D","Nant-y-glo",425]
[10,null,null,"IWW505","Trostre Pit Reservoir","SO19281 08877",319281,208877,"Reservoir","B","Coalbrookvale ironworks",426]
[10,null,null,"IWW507","Glan-rhyd reservoir","SO19369 08985",319369,208985,"Reservoir","D","Coalbrookvale ironworks",428]
[10,null,null,"IWW510","Reservoir, Blaina House","SO20024 09006",320024,209006,"Reservoir","B","Blaina",429]
[10,null,null,"IWW511","Caddick's Row Reservoir","SO20125 08857",320125,208857,"Reservoir","D","Blaina",430]
[10,null,null,"IWW512","Rhiw'r-gored Reservoir","SO2070 08681",320070,208681,"Reservoir","D","Blaina",431]
[10,null,null,"IWW516","Bumblow Reservoir","SO20269 08563",320269,208563,"Reservoir","D","Blaina",434]
[10,null,null,"IWW515","Dol-y-garn Reservoir","SO20315 08588",320315,208588,"Reservoir","D","Blaina",435]
[10,null,null,"IWW518","Feeder, Cwm-celyn","SO20363 08510",320363,208510,"Feeder","B","Blaina",438]
[10,null,null,"IWW525","Fish Pond, White Farm","SO20742 08516",320742,208516,"Pond","B","Blaina?",440]
[10,null,null,"IWW520","Griffin Pit Reservoir","SO19601 08557",319601,208557,"Reservoir","B","Blaina",442]
[10,null,null,"IWW521","Griffin Pit Reservoir","SO19577 08549",319577,208549,"Reservoir","D","Blaina",443]
[10,null,null,"IWW522","Ebbw Row Reservoir, Blaina","SO19820 08232",319820,208232,"Reservoir","D","Blaina",444]
[10,null,null,"IWW523","Globe Row Reservoir, Blaina","SO20188 08312",320188,208312,"Reservoir","D","Blaina",445]
[10,null,null,"IWW524","Reservoir, Globe Row, Blaina","SO20326 08343",320326,208343,"Reservoir","D","Blaina",446]
[10,null,null,"IWW527","Mount Pleasant Reservoir","SO19694 08023",319694,208023,"Reservoir","B","Blaina",447]
[10,null,null,"IWW531","Reservoir, Glyn-milwr","SO20634 08046",320634,208046,"Reservoir","D","Glyn-milwr mine",451]
[10,null,null,"IWW533","Reservoir, Nant-y-glo Deep Pit","SO18887 09791",318887,209791,"Reservoir","U","Nant-y-glo",454]
[10,null,null,"IWW550","Reservoir, Varteg Hill","SO26476 06374",326476,206374,"Reservoir","U","? Varteg",457]
[10,null,null,"IWW557","Pond, Varteg Hill","SO26248 06053",326248,206053,"Pond","D","? Varteg",458]
[10,null,null,"IWW558","Pond, Varteg Hill","SO26262 06012",326262,206012,"Pond","D","? Varteg",459]
[10,null,null,"IWW559","Pond, Varteg Hill","SO26213 05965",326213,205965,"Pond","D","? Varteg",460]
[10,null,null,"IWW552","Reservoir, Varteg Hill","SO26424 06029",326424,206029,"Reservoir","B","? Varteg",461]
[10,null,null,"IWW583","Pond, Varteg Hill","SO26591 05900",326591,205900,"Pond","U","? Varteg",464]
[10,null,null,"IWW560","Reservoir, Varteg Old Furnace","SO26461 05682",326461,205682,"Reservoir","U","Varteg?",466]
[10,null,null,"IWW561","Reservoir, Varteg Old Furnace","SO26401 05672",326401,205672,"Reservoir","D","Varteg?",467]
[10,null,null,"IWW565","Holding Reservoir, Golynos Foundry","SO25863 04881",325863,204881,"Reservoir","D","Golynos",469]
[10,null,null,"IWW570","Reservoir, Cwmsychan","SO24242 04117",324342,204117,"Reservoir","B","British",470]
[10,null,null,"IWW574","Reservoir, British Ironworks","SO25856 04087",325856,204087,"Reservoir","U","British",474]
[10,null,null,"IWW575","Reservoir, British Ironworks","SO25890 03963",325890,203963,"Reservoir","U","British",476]
[10,null,null,"IWW578","Reservoir British Ironworks","SO25748 03500",325748,203500,"Reservoir","U","British",477]
[10,null,null,"IWW577","Reservoir, British Ironworks","SO25649 03985",325649,203985,"Reservoir","U","British",479]
[10,null,null,"IWW581","Reservoir, Varteg Hill Colliery","SO25068 05981",325068,205981,"Reservoir","D","Varteg?",480]
[10,null,null,"IWW597(formerly 581a)","Reservoir, Near Pentwyn Foundry","SO26107 03291",326107,203291,"Reservoir","U","Pentwyn",486]
[10,null,null,"IWW599","Reservoir, north of Ty-Trist Colliery","SO14532 07921",314532,207921,"Reservoir","D","?",488]
[10,null,null,"IWW601","Group of small reservoirs, Cwmsychan Colliery","SO24894 04468",324894,204468,"Reservoirs","U","? British",490]
[10,null,null,"IWW939","Tank, Pant Glas","SO25371 03351",325371,203351,"Water Tank/pond","D","Pentwyn",492]
[10,null,null,"IWW938","Pond, Pant Glas","SO25477 03362",325477,203362,"Pond","D","Pentwyn",493]
[10,null,null,"IWW941","Pond, Pant Glas","SO25437 03324",325437,203324,"Pond","B","Pentwyn",494]
[10,null,null,"IWW602","Ponds, Sirhowy Brick Works","SO1416910092",314169,210092,"Pond","U","Sirhowy?",495]
[10,null,null,"IWW605","Pond, George Town","SO1510608721",315106,208721,"Pond","B","Tredegar?/Mount Pleasant Brick Works",498]
[10,null,null,"IWW627","Pond, Tai-Humphrey-Hughes","SO1840911334",318408,211334,"Pond","E","Nant-y-glo",517]
[10,null,null,"IWW625","Pond, Nant-y-glo","SO1881210664",318812,210664,"Pond","D","Nant-y-glo",518]
[10,null,null,"IWW628","Pond, Little Forge Row, Nant-y-glo","SO1906210870",319062,210870,"Pond","D","Nant-y-glo",520]
[10,null,null,"IWW612","Pond, Turkeytown","SO1947510351",319475,210351,"Pond","D","Nant-y-glo",522]
[10,null,null,"IWW633","Reservoir, Bryn-mawr water works","SO2010313599",320113,213599,"Reservoir","B/E",null,536]
[10,null,null,"IWW001","Hirwaun Pond","SN9477606056",294776,206056,"Reservoir","B","Hirwaun",633]
[10,null,null,"IWW555","Pond, Varteg Hill","SO26411 05897",326411,205897,"Pond","U","? Varteg",653]
[10,null,null,"IWW563","Reservoir, Lower Varteg Colliery, Golynos","SO25797 05181",325797,205181,"Reservoir","D","? Golynos",654]
[10,null,null,"IWW567","Reservoir, Golynos Foundry","SO25886 04662",325886,204662,"Reservoir","U","Golynos",656]
[10,null,null,"IWW936","Pond, Pant Glas","SO25599 03035",325599,203035,"Pond","A","Pentwyn",660]
[10,null,null,"IWW937","Pond, Pant Glas","SO25509 03310",325509,203310,"Pond","D","Pentwyn",661]
[10,null,null,"IWW916","Gwaun y Ffa ponds","SO1865213528",318652,213528,"Pond","B/C",null,667]
[10,null,null,"IWW917","Figyn-fawr scouring system","SO1940013326",319400,213326,"Leat","A/B",null,668]
[10,null,null,"IWW918","Nant melyn scouring system","SO1973812598",319738,212598,"Scours","A/B",null,670]